Added:

- `dcr gen` command for IDE integration and build tool support
    - `dcr gen project-info`: Output project metadata as JSON
    - `dcr gen compile-commands`: Generate `compile_commands.json` for clangd and clang-tidy
    - `dcr gen vscode`: Generate VS Code `.vscode/` integration (launch.json, tasks.json, settings.json)
    - `dcr gen clion`: Generate JetBrains CLion `.idea/` integration (run configurations, build targets)
- Full workspace support for all `gen` subcommands

CHANGELOG.md

@@ -1,20 +1,46 @@
 # Changelog
 
-## [0.2.9] - 2026-03-14
+## [0.3.0] - 2026-03-18
+
 Added:
+
+- `dcr gen` command for IDE integration and build tool support
+    - `dcr gen project-info`: Output project metadata as JSON
+    - `dcr gen compile-commands`: Generate `compile_commands.json` for clangd and clang-tidy
+    - `dcr gen vscode`: Generate VS Code `.vscode/` integration (launch.json, tasks.json, settings.json)
+    - `dcr gen clion`: Generate JetBrains CLion `.idea/` integration (run configurations, build targets)
+- Full workspace support for all `gen` subcommands
+
+## [0.2.10] - 2026-03-16
+
+Added:
+
+- `build.steps` for pre-build generators (e.g., `moc`/`uic`/`rcc`)
+- `build.pkg_config` for `pkg-config`-driven cflags/ldflags resolution
+- `[toolchain]` support for `uic`, `moc`, `rcc`
+- Step command variables (`{uic}`, `{moc}`, `{rcc}`, `{cflags}`, `{stem}`, `{in}`, `{out}`)
+- `{profile}` placeholder support for dependency paths
+
+## [0.2.9] - 2026-03-14
+
+Added:
+
 - Header dependency tracking for fine-grained incremental builds (rebuilds when `#include` files change)
 - Complete internal rewrite of the builder module: merged duplicate compilation backends
 
 Changed:
+
 - `cflags` and `default_flags` no longer incorrectly leak to the linker stage in GCC/Clang
 - Reduced builder codebase size by over 20% while increasing reliability
 - Greatly expanded test suite with 34 new tests covering configuration, CLI errors, and path operations
 
 ## [0.2.8] - 2026-03-06
+
 Added:
+
 - Workspace support (`[workspace]` with deps ordering)
 - `clean --all` for workspace members
-Changed:
+  Changed:
 - Project root discovery for `build/run/clean` (searches parent dirs)
 - Workspace paths are excluded from root source scan
 - Build output now uses a Cargo-style `Compiling <name> v<version>` line
@@ -23,12 +49,16 @@ Changed:
 - Safer build cache: fingerprints include headers and resolved library files
 
 ## [0.2.7] - 2026-03-03
+
 Added:
+
 - Toolchain overrides via `[toolchain]` and env (`DCR_*`)
 - ASM `.S` preprocessing via GCC/Clang (`-x assembler-with-cpp`)
 
 ## [0.2.6] - 2026-03-01
+
 Added:
+
 - `sharedlib` build kind (shared library output)
 - ASM projects (`build.language = "asm"`)
 - NASM and GAS backends
@@ -36,24 +66,31 @@ Added:
 - Basic CLI integration tests
 
 ## [0.2.5] - 2026-02-26
+
 Added:
+
 - Incremental builds (object caching by mtime)
 - `build.kind` with `staticlib` support
 - Custom output directory via `build.target`
 
 ## [0.2.4] - 2026-02-22
+
 Added:
+
 - Custom build flags: `build.cflags` and `build.ldflags`
 - Recursive source discovery inside `src/`
 - Path dependencies with auto include/lib resolution and `dcr.lock` generation (experimental)
 - Add docs/index.md and docs/dcr-toml.md
 
 ## [0.2.3] - 2026-02-21
+
 Added:
+
 - Modular builders for `gcc`, `clang`, `msvc`
 - Platform-specific binary path generation (Linux/macOS/Windows)
 
 Changed:
+
 - Build configuration moved to `[build]` (`language`, `standard`, `compiler`)
 - `dcr.toml` formatting now includes the `[build]` section
 - Build uses built-in `debug/release` flags per compiler
@@ -61,20 +98,26 @@ Changed:
 - Updated `dcr.toml` examples in documentation
 
 ## [0.2.2] - 2026-02-20
+
 Changed:
+
 - Reworked `dcr.toml` handling: added read, validation, and edit through `core::config`
 - `new` and `init` use the new config creation logic
 - `build` and `run` now require `dcr.toml` and read `compiler` and `name` from it
 
 ## [0.2.1] - 2026-02-18
+
 Changed:
+
 - Translated user-facing CLI messages to English
 - Unified error and warning output via `utils::log::{error, warn}`
 - Updated `--help` output: translated headers and examples to English, used `printc`, and applied `BOLD_*` styles
 - Translated installer script messages in `install.sh` and `install.ps1` to English
 
 ## [0.2.0] - 2026-02-17
+
 Changed:
+
 - Project migrated from Python to Rust
 - CLI and commands (`new`, `init`, `build`, `run`, `clean`, `--help`, `--version`, `--update`) ported to Rust
 - Updated `--update` flag: added support for GNU/Linux, Windows, macOS
@@ -83,31 +126,40 @@ Changed:
 - Updated `install.sh` for GNU/Linux and macOS
 
 Added:
+
 - Added `install.ps1` for Windows
 - Support for GNU/Linux, Windows, macOS (x86_64/arm)
 
 Important:
+
 - Code was ported with neural networks; future versions will include bug fixes and logic changes
 
 ## [0.1.2] - 2026-02-12
+
 Added:
+
 - Update command
 - `install.sh` install script and README instructions
 - `--version` flag
 
 Changed:
+
 - Improved CLI output, added colors, and updated `--help`
 - Updated project run/build handling in `run.py`/`build.py`
 
 ## [0.1.1] - 2026-02-11
+
 Changed:
+
 - Updated `--help`
 - `main.py` now runs correctly when executed directly
 
 ## [0.1.0] - 2026-02-11
+
 First public release.
 
 Added:
+
 - Base commands `new`, `init`, `build`, `run`, `clean`
 - Build profiles `debug` and `release`
 - `dcr.toml` and `src/main.c` templates

Cargo.lock

@@ -90,8 +90,9 @@ dependencies = [
 
 [[package]]
 name = "dcr"
-version = "0.2.9"
+version = "0.3.0"
 dependencies = [
+ "glob",
  "reqwest",
  "self-replace",
  "serde",
@@ -262,6 +263,12 @@ dependencies = [
  "wasip3",
 ]
 
+[[package]]
+name = "glob"
+version = "0.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0cc23270f6e1808e30a928bdc84dea0b9b4136a8bc82338574f23baf47bbd280"
+
 [[package]]
 name = "hashbrown"
 version = "0.15.5"

Cargo.toml

@@ -1,10 +1,11 @@
 [package]
 name = "dcr"
-version = "0.2.9"
+version = "0.3.0"
 edition = "2024"
 build = "build.rs"
 
 [dependencies]
+glob = "0.3"
 reqwest = { version = "0.12", default-features = false, features = ["blocking", "json", "rustls-tls"] }
 serde = { version = "1", features = ["derive"] }
 self-replace = "1"

README.md

@@ -14,9 +14,11 @@ The current implementation is written in Rust.
 - Build a project with `debug` and `release` profiles
 - Run the compiled binary
 - Clean build artifacts
+- Generate IDE integration files (VS Code, CLion) and compilation databases
 - Generate a minimal C project template
 - Build static and shared libraries
 - ASM projects with NASM/GAS or via GCC/Clang
+- Mixed language projects (`language = ["c", "asm"]` and similar)
 - Update the binary via `dcr --update` (GitHub Releases, not for pacman/AUR installs)
 
 ## Supported Platforms
@@ -104,9 +106,11 @@ Creates a project in the current directory. The project name is taken from the d
 
 ### `dcr build [profile]`
 Builds the project. If no profile is specified, `--debug` is used.
+Use `--force` to rebuild without cache, `--clean` to clean before build.
 
 ### `dcr run [profile]`
 Builds the project and runs the binary. If no profile is specified, `--debug` is used.
+Use `--force` to rebuild without cache, `--clean` to clean before build.
 
 Run manually:
 `./target/<profile>/<name>`
@@ -121,11 +125,16 @@ Two profiles are supported:
 - `--release` - built-in flags per compiler
 
 Custom flags can be added in `dcr.toml` via `build.cflags` and `build.ldflags`.
+Profile-specific flags can be added via `[build.debug]` and `[build.release]`.
 You can also set `build.target` to override the output directory (profile-independent).
 You can set `build.platform` to pass `-march=<platform>` (GCC/Clang) or `/arch:*` (MSVC) where supported.
 Use `build.kind = "staticlib"` to build a static library instead of a binary.
 Use `build.kind = "sharedlib"` to build a shared library (`.so`/`.dylib`/`.dll`).
 `dcr run` is only for `build.kind = "bin"` and will fail for libraries.
+Use `build.exclude`/`build.include` to control source/header collection.
+Use `build.roots` and `build.src_disable` to replace the default `src/` root.
+Use `build.steps` and `build.post_steps` to run custom commands.
+Use `build.clean` for extra cleanup paths and `[run].cmd` to override run command.
 
 ## Configuration
 The main project file is `dcr.toml`.
@@ -146,6 +155,10 @@ compiler = "clang"
 # Optional custom flags
 cflags = ["-Wall", "-Wextra"]
 ldflags = ["-lm"]
+#
+# Optional include/exclude:
+# exclude = ["src/vendor", "src/legacy/**"]
+# include = ["src/boot/arch/**"]
 
 [toolchain]
 # Optional tool overrides:
@@ -154,6 +167,9 @@ ldflags = ["-lm"]
 # as = "as"
 # ar = "ar"
 # ld = "ld"
+# uic = "uic"
+# moc = "moc"
+# rcc = "rcc"
 
 [dependencies]
 ```

docs/README.md

@@ -18,12 +18,19 @@ Current DCR focuses on a simple, predictable workflow:
   - C++: `*.cpp`, `*.cxx`, `*.cc`
 - Compiler selection from `dcr.toml` (`clang`, `gcc`, `cl`, `clang-cl`, etc.).
 - ASM support via `language = "asm"` (GCC/Clang, NASM, GAS).
+- Mixed language builds via `language = ["c", "asm"]` and similar combinations.
 - Three build kinds:
   - `bin` (default)
   - `staticlib`
   - `sharedlib`
 - Optional custom output directory via `build.target`.
 - Optional `build.platform` to pass architecture hints (`-march` / `/arch`).
+- Optional `build.exclude`/`build.include` for source/header selection.
+- Optional `build.roots`/`build.src_disable` to replace the default `src/` root.
+- Optional build steps with `build.steps` and `build.post_steps`.
+- Optional `build.pkg_config` integration.
+- Optional `build.clean` and `build.expect`.
+- Optional `[run].cmd` to override run command.
 - Workspace builds via `[workspace]` with per-project `dcr.toml`.
 - Path dependencies with include/lib resolution and `dcr.lock` generation.
 
@@ -31,7 +38,7 @@ Current DCR focuses on a simple, predictable workflow:
 
 - `dcr.toml` is required for `build`, `run`, and `clean`.
 - `run` works only with `build.kind = "bin"`.
-- Incremental rebuild currently tracks source file timestamps (not header dependency graphs).
+- Incremental rebuild tracks source file timestamps and header dependencies (rebuilds when either source or included headers change).
 - Object files are always created under `target/<profile>/obj/`.
 
 ## Repository

docs/SUMMARY.md

@@ -24,6 +24,7 @@
 * [dcr build](commands/dcr-build.md)
 * [dcr run](commands/dcr-run.md)
 * [dcr clean](commands/dcr-clean.md)
+* [dcr gen](commands/dcr-gen.md)
 
 ## Dependencies & Build
 

docs/commands/dcr-build.md

@@ -8,6 +8,8 @@ Builds the project in `debug` or `release` profile.
 dcr build
 dcr build --debug
 dcr build --release
+dcr build --release --force
+dcr build --debug --clean
 ```
 
 ## What `build` does
@@ -30,17 +32,33 @@ dcr build --release
 - `build.platform`
 - `build.cflags`
 - `build.ldflags`
+- `build.debug` / `build.release`
+- `build.exclude`
+- `build.include`
+- `build.pkg_config`
+- `build.steps`
+- `build.post_steps`
+- `build.generated`
+- `build.expect`
+- `build.clean`
 
 ## Source selection
 
 - `language = "c"` -> `*.c`
 - `language = "c++" | "cpp" | "cxx"` -> `*.cpp`, `*.cxx`, `*.cc`
 - `language = "asm"` -> `*.s`, `*.S`, `*.asm`
+- Mixed languages are supported with arrays, for example `language = ["c", "asm"]`.
+- By default sources are searched in `src/`; use `build.roots` and `build.src_disable` to override.
 
 ## Notes
 
 - The profile is selected from the first argument only.
 - Unknown profile flags return an error.
 - Incremental rebuild is based on source/object mtime comparison.
+- `--force` skips build cache checks and recompiles.
+- `--clean` removes `target/<profile>` and `build.clean` paths before building.
 - For `language = "asm"` with `compiler = "as"`/`"gas"`, use `.s` files (no preprocessing). For `.S`, use `gcc` or `clang`.
 - In workspace root, `dcr build` builds all members in dependency order.
+- `build.exclude` removes paths from source/header collection; `build.include` re-allows matching paths and has priority over `exclude`.
+- `build.steps` run before compilation; `build.post_steps` run after linking.
+- `build.generated` is cleaned when `build.steps` need to rerun; `build.expect` is verified after post-steps.

docs/commands/dcr-clean.md

@@ -17,6 +17,8 @@ dcr clean --release --all
 - Without arguments: removes entire `target/`.
 - With profile: removes only `target/<profile>/`.
 - With `--all`: also cleans all workspace members.
+- Additionally removes paths from `build.clean` if configured.
+- `build.clean` supports `{profile}` and version placeholders.
 
 ## Validation
 

docs/commands/dcr-gen.md

@@ -0,0 +1,168 @@
+# dcr gen
+
+Generates IDE and build tool integration files for C/C++ development environments.
+
+## Usage
+
+```sh
+dcr gen project-info
+dcr gen project-info --release
+dcr gen compile-commands
+dcr gen compile-commands --debug
+dcr gen vscode
+dcr gen vscode --release
+dcr gen clion
+dcr gen clion --debug
+```
+
+## Subcommands
+
+### `dcr gen project-info`
+
+Outputs project metadata as JSON array.
+
+```sh
+dcr gen project-info [--debug | --release]
+```
+
+Outputs structured information about the project (root project + all workspace members if present):
+
+```json
+[
+  {
+    "name": "my-project",
+    "version": "1.0.0",
+    "root": "/path/to/root",
+    "profile": "debug",
+    "language": "c++",
+    "standard": "c++17",
+    "compiler": "g++",
+    "kind": "bin",
+    "sources": ["/path/to/root/src/main.cpp", ...],
+    "include_dirs": ["/path/to/dep/include", ...],
+    "lib_dirs": ["/path/to/dep/lib", ...],
+    "libs": ["somelib", ...],
+    "cflags": ["-Wall", ...],
+    "ldflags": ["-lm", ...]
+  }
+]
+```
+
+This is useful for integrating DCR projects with custom build tools or scripts.
+
+### `dcr gen compile-commands`
+
+Generates `compile_commands.json` for use by `clangd`, `clang-tidy`, and other tools.
+
+```sh
+dcr gen compile-commands [--debug | --release]
+```
+
+Writes `./compile_commands.json` containing compilation database entries for all source files. This file is recognized by:
+- LSP servers (`clangd`, `clang-tools-extra`)
+- Linters (`clang-tidy`)
+- Format tools (`clang-format`)
+
+The entries include:
+- Full compiler command with flags
+- Source file path
+- Object file output path
+- Project root as working directory
+
+### `dcr gen vscode`
+
+Generates Visual Studio Code integration files.
+
+```sh
+dcr gen vscode [--debug | --release]
+```
+
+Creates `.vscode/` directory with:
+
+- **`launch.json`**: Debug configurations (one per binary target, debug + release variants)
+- **`tasks.json`**: Build/run/clean tasks using `dcr` commands
+- **`settings.json`**: Clangd configuration pointing to `compile_commands.json`
+- **`extensions.json`**: Recommends `clangd`, disables `cpptools`
+- **`compile_commands.json`**: Compilation database (same as `dcr gen compile-commands`)
+
+Usage in VSCode:
+- Open the Command Palette (`Ctrl+Shift+P`) and select **"Debug: Start Debugging"** to run debugger
+- Press `Ctrl+Shift+B` to run the build task
+- Clangd will provide IntelliSense and diagnostics based on `compile_commands.json`
+
+### `dcr gen clion`
+
+Generates JetBrains CLion integration files.
+
+```sh
+dcr gen clion [--debug | --release]
+```
+
+Creates `.idea/` directory with:
+
+- **`externalTools.xml`**: Registers DCR build/clean/gen commands as external tools
+- **`customTargets.xml`**: Defines build targets for debug and release
+- **`misc.xml`**: Points CLion to `compile_commands.json` for compilation database
+- **`.idea/.gitignore`**: Ignores auto-generated files
+- **`runConfigurations/*.xml`**: Debug run configs (one per binary target)
+- **`compile_commands.json`**: Compilation database (same as `dcr gen compile-commands`)
+
+Usage in CLion:
+- Build/clean via **Tools → DCR → Build Debug/Release/Clean**
+- Run/debug via **Run → Run Configurations** (dropdown) → select generated config
+- Code completion and diagnostics come from the compilation database
+
+## Config values used
+
+- `package.name`
+- `build.compiler`
+- `build.language`
+- `build.standard`
+- `build.kind`
+- `build.target`
+- `build.platform`
+- `build.cflags`
+- `build.ldflags`
+- `build.debug` / `build.release`
+- `build.exclude`
+- `build.include`
+- `build.pkg_config`
+- `build.roots`
+- `build.src_disable`
+- Workspace members (if `[workspace]` is present)
+
+## Workspace support
+
+When running `dcr gen` in a workspace root, all commands process both the root project and all workspace members:
+
+- `project-info` returns an array with entries for each member + root
+- `compile-commands` includes entries from all members
+- `vscode` and `clion` generate unified configurations that work across all members
+
+## Troubleshooting
+
+### Clangd not picking up includes
+
+- Ensure `compile_commands.json` exists in the workspace root
+- In VSCode settings, verify `clangd.arguments` includes `--compile-commands-dir=<workspace-root>`
+- Rebuild via `dcr gen compile-commands` if sources or dependencies changed
+
+### Debug configuration not working
+
+- Verify binary paths in `launch.json` match actual build output (`target/<profile>/binary-name`)
+- For workspace projects, each member's debug config uses its own `target/` directory
+- Ensure GDB/LLDB is installed: `gdb --version` or `lldb --version`
+
+### CLion not recognizing includes
+
+- Regenerate via `dcr gen clion --debug`
+- File → Invalidate Caches → Invalidate and Restart
+- Verify `.idea/misc.xml` points to correct `compile_commands.json` path
+
+## Notes
+
+- Profiles default to `debug` if not specified
+- Generation does not require the project to be built first
+- Generated files are safe to commit; they are generated from `dcr.toml` and thus repeatable
+- IDE configurations may be customized after generation, but changes will be overwritten on next `dcr gen` run
+- For multi-binary projects, `vscode` and `clion` generate debug configs for all binaries (both debug + release variants)

docs/commands/dcr-run.md

@@ -8,6 +8,8 @@ Builds the project and runs the resulting binary.
 dcr run
 dcr run --debug
 dcr run --release
+dcr run --release --force
+dcr run --debug --clean
 ```
 
 ## Behavior
@@ -16,11 +18,20 @@ dcr run --release
 2. Reads `package.name`, `build.kind`, and optional `build.target`.
 3. Runs the same build flow as `dcr build`.
 4. Executes the built artifact path for the selected profile.
+5. If `[run].cmd` is set, runs that command instead of the built binary.
 
 ## Restrictions
 
 - If `build.kind = "staticlib"` or `build.kind = "sharedlib"`, `run` exits with error.
 - The profile is selected from the first argument.
+- `--force` skips build cache checks and recompiles.
+- `--clean` removes `target/<profile>` and `build.clean` paths before building.
+
+## `run.cmd` variables
+
+`run.cmd` supports the same variables as build steps: `{profile}`, `{version}`, `{version_major}`,
+`{version_minor}`, `{version_patch}`, `{version_suffix}`, `{version_suffix_dash}`.
+The command runs via `sh -c` on Unix and `cmd /C` on Windows.
 
 ## On build failure
 

docs/configuration/build-profiles.md

@@ -14,16 +14,18 @@ dcr run --release
 dcr clean --debug
 ```
 
+You can also add `--force` or `--clean` to `build`/`run`.
+
 ## Default profile flags
 
 ### GCC/Clang-like toolchains
 
-- `debug`: `-O0 -g -Wall -Wextra -fno-omit-frame-pointer -DDEBUG`
+- `debug`: `-O0 -g -Wall -Wextra -fno-omit-frame-pointer -DDCR_DEBUG`
 - `release`: `-O3 -DNDEBUG -march=native`
 
 ### MSVC toolchain
 
-- `debug`: `/Od /Zi /W4 /DDEBUG /Oy-`
+- `debug`: `/Od /Zi /W4 /DDCR_DEBUG /Oy-`
 - `release`: `/O2 /DNDEBUG`
 
 ## Artifacts
@@ -37,12 +39,12 @@ Default compiler flags:
 
 GCC/Clang:
 
-- `debug`: `-O0 -g -Wall -Wextra -fno-omit-frame-pointer -DDEBUG`
+- `debug`: `-O0 -g -Wall -Wextra -fno-omit-frame-pointer -DDCR_DEBUG`
 - `release`: `-O3 -DNDEBUG -march=native`
 
 MSVC:
 
-- `debug`: `/Od /Zi /W4 /DDEBUG /Oy-`
+- `debug`: `/Od /Zi /W4 /DDCR_DEBUG /Oy-`
 - `release`: `/O2 /DNDEBUG`
 
 Static library mode (`kind = "staticlib"`):
@@ -55,3 +57,18 @@ Shared library mode (`kind = "sharedlib"`):
 - Linux: `lib<name>.so`
 - macOS: `lib<name>.dylib`
 - Windows: `<name>.dll`
+
+## Profile overrides
+
+Use `[build.debug]` and `[build.release]` to override build settings per profile.
+All values inherit from `[build]`. If a field is present in the profile table, it replaces the base value.
+For arrays (like `cflags`/`ldflags`), the profile value is appended to the base array.
+
+```toml
+[build.debug]
+cflags = ["-g3"]
+
+[build.release]
+cflags = ["-O3"]
+ldflags = ["-s"]
+```

docs/configuration/build-section.md

@@ -13,11 +13,20 @@ kind = "bin"
 # platform = "x86_64"
 # cflags = ["-Wall"]
 # ldflags = ["-lm"]
+# exclude = ["src/vendor", "src/legacy/**"]
+# include = ["src/legacy/boot/**"]
+# roots = ["kernel", "drivers"]
+# src_disable = true
+# pkg_config = ["Qt6Core", "Qt6Widgets"]
+# generated = ["src/ui/*.h"]
+# expect = ["./target/{profile}/boot/*.bin"]
+# clean = ["./target/{profile}/boot", "/tmp/image/*.img"]
 ```
 
 ## Fields
 
-- `language` (string, required): `c`, `c++`, `cpp`, `cxx`, or `asm`.
+- `language` (string or array, required): `c`, `c++`, `cpp`, `cxx`, or `asm`.
+  Mixed languages can be specified as an array, for example `["c", "c++", "asm"]`.
 - `standard` (string, required): language standard passed to compiler.
 - `compiler` (string, required): compiler command (for example `clang`, `gcc`, `cl`).
 - `kind` (string, required): `bin`, `staticlib`, or `sharedlib`.
@@ -25,6 +34,62 @@ kind = "bin"
 - `platform` (string, optional): architecture hint for compiler (used for `-march` or `/arch`).
 - `cflags` (string array, optional): extra compile flags.
 - `ldflags` (string array, optional): extra link flags.
+- `exclude` (string array, optional): paths or glob patterns to skip during source/header collection.
+- `include` (string array, optional): allowlist paths or globs that override `exclude`.
+- `include` directory entries (non-glob) are also passed to the compiler as `-I` include paths.
+- `roots` (string array, optional): additional source roots to scan instead of `src/`.
+- `src_disable` (bool, optional): disables default `src/` root when true.
+- `pkg_config` (string array, optional): packages used to append `pkg-config --cflags/--libs`.
+- `generated` (string array, optional): generated files to delete when build steps rerun.
+- `expect` (string array, optional): artifacts that must exist after build/post-steps.
+- `clean` (string array, optional): additional paths removed by `dcr clean` and `--clean`.
+
+Notes for `exclude`/`include`:
+- Supports `*` and `**` glob patterns.
+- If `include` is set, it has priority over `exclude`.
+- Use `include` to re-allow nested paths, for example exclude `src/boot` but allow `src/boot/arch/**`.
+When using glob patterns in `exclude`, DCR converts them internally, so `exclude` globs still work as expected.
+
+### Build steps
+
+Build steps run shell commands before compilation. Post steps run after linking.
+
+```toml
+[[build.steps]]
+name = "uic"
+in = "src/ui/*.ui"
+out = "src/ui/{stem}.h"
+cmd = "{uic} {in} -o {out}"
+
+[[build.post_steps]]
+name = "image"
+in = "target/{profile}/boot/*.bin"
+out = "/tmp/image/os-{version}.img"
+cmd = "dd if=/dev/zero of={out} bs=1M count=8"
+```
+
+Step notes:
+- `in` supports glob patterns.
+- If `in` expands to multiple files, `out` must include `{stem}`.
+- Steps run only when inputs are newer than outputs.
+- Variables: `{in}`, `{out}`, `{stem}`, `{cflags}`, `{uic}`, `{moc}`, `{rcc}`, `{profile}`,
+  `{version}`, `{version_major}`, `{version_minor}`, `{version_patch}`, `{version_suffix}`, `{version_suffix_dash}`.
+
+`build.clean` supports `{profile}` and version placeholders (`{version}`, `{version_major}`, ...).
+
+### Profile overrides
+
+Profile tables inherit all values from `[build]`. Any field present in the profile table replaces the base value.
+Array fields (like `cflags`/`ldflags`) are appended to the base array.
+
+```toml
+[build.debug]
+cflags = ["-g3"]
+
+[build.release]
+cflags = ["-O3"]
+ldflags = ["-s"]
+```
 
 ## Toolchain section
 
@@ -35,6 +100,9 @@ cxx = "clang++"
 as = "as"
 ar = "ar"
 ld = "ld"
+uic = "uic"
+moc = "moc"
+rcc = "rcc"
 ```
 
 ## Behavior notes

docs/configuration/dcr.toml-overview.md

@@ -45,6 +45,19 @@ Workspace-only root:
 - `build.target`
 - `build.cflags`
 - `build.ldflags`
+- `build.exclude`
+- `build.include`
+- `build.roots`
+- `build.src_disable`
+- `build.pkg_config`
+- `build.steps`
+- `build.post_steps`
+- `build.generated`
+- `build.expect`
+- `build.clean`
+- `build.debug`
+- `build.release`
 - dependency fields (`include`, `lib`, `libs`, `system`)
-- `[toolchain]` overrides (`cc`, `cxx`, `as`, `ar`, `ld`)
+- `[toolchain]` overrides (`cc`, `cxx`, `as`, `ar`, `ld`, `uic`, `moc`, `rcc`)
 - `[workspace]` members
+- `[run]` overrides (`cmd`)

docs/dependencies-and-build/compilers-and-linking.md

@@ -15,8 +15,11 @@ DCR picks a backend from `build.compiler`:
 ## Compilation model
 
 - Source files are found recursively in `src/` based on `build.language`.
+- `build.roots` and `build.src_disable` can replace the default `src/` root.
+- Mixed language builds use arrays, for example `build.language = ["c", "asm"]`.
 - Each source is compiled to `target/<profile>/obj/<relative-path>.o` (`.obj` on MSVC).
 - Recompile happens when source mtime is newer than object mtime.
+- `build.exclude` removes paths from source/header collection; `build.include` re-allows matching paths and has priority over `exclude`.
 
 ## Default build flags
 
@@ -24,12 +27,12 @@ These flags are applied automatically based on profile and compiler backend.
 
 GCC/Clang:
 
-- `debug`: `-O0 -g -Wall -Wextra -fno-omit-frame-pointer -DDEBUG`
+- `debug`: `-O0 -g -Wall -Wextra -fno-omit-frame-pointer -DDCR_DEBUG`
 - `release`: `-O3 -DNDEBUG -march=native`
 
 MSVC:
 
-- `debug`: `/Od /Zi /W4 /DDEBUG /Oy-`
+- `debug`: `/Od /Zi /W4 /DDCR_DEBUG /Oy-`
 - `release`: `/O2 /DNDEBUG`
 
 ## Platform hint
@@ -46,10 +49,12 @@ If `[toolchain]` is set, DCR uses its values to override compiler/linker tools:
 - `cc`, `cxx`, `as` override compilers for C/C++/ASM
 - `ar` overrides the archiver (used for `staticlib`)
 - `ld` overrides the linker (used by GCC/Clang/NASM/GAS backends)
+- `uic`, `moc`, `rcc` override Qt tools used in `build.steps`
 
 Environment overrides (highest priority):
 - `DCR_COMPILER` (all languages)
 - `DCR_CC`, `DCR_CXX`, `DCR_AS`, `DCR_AR`, `DCR_LD`
+- `DCR_DEBUG` enables verbose build logging
 
 ## Linking
 

docs/dependencies-and-build/local-dependencies.md

@@ -11,6 +11,11 @@ For each dependency in `[dependencies]`, DCR:
 5. Synchronizes dependency files to `target/<profile>/deps/<dep-name>/`.
 6. Adds include/lib/link options to compile/link commands.
 
+### Profile placeholders
+
+`path`, `include`, and `lib` entries may use `{profile}` which expands to the active profile
+(`debug` or `release`).
+
 ## Failure cases
 
 - Dependency path is missing or not a directory.

docs/getting-started/build-and-run.md

@@ -8,6 +8,7 @@ Debug (default):
 dcr build
 # or
 dcr build --debug
+dcr build --debug --clean
 ```
 
 Release:
@@ -22,6 +23,7 @@ dcr build --release
 dcr run
 # or
 dcr run --release
+dcr run --release --force
 ```
 
 `dcr run` first builds, then launches the produced binary.
@@ -47,3 +49,4 @@ dcr clean --release --all
 - Build profile flag is parsed from the first command argument.
 - Unknown profile flags produce an error.
 - In workspace root, `clean --all` cleans all member projects.
+- `--clean` for `build`/`run` removes `target/<profile>` and paths from `build.clean`.

docs/reference-and-help/config-reference.md

@@ -8,7 +8,7 @@ name = "string"      # required
 version = "string"   # required
 
 [build]
-language = "c|c++|cpp|cxx|asm"     # required
+language = "c|c++|cpp|cxx|asm"     # required (string or array)
 standard = "string"            # required
 compiler = "string"            # required
 kind = "bin|staticlib|sharedlib"         # required
@@ -16,6 +16,42 @@ target = "string"              # optional
 platform = "string"            # optional
 cflags = ["string", "..."]     # optional
 ldflags = ["string", "..."]    # optional
+exclude = ["string", "..."]    # optional
+include = ["string", "..."]    # optional
+roots = ["string", "..."]      # optional
+src_disable = false            # optional
+pkg_config = ["string", "..."] # optional
+generated = ["string", "..."]  # optional
+expect = ["string", "..."]     # optional
+clean = ["string", "..."]      # optional
+
+[[build.steps]]
+name = "string"
+in = "glob"
+out = "path or glob"
+cmd = "string"
+
+[[build.post_steps]]
+name = "string"
+in = "glob"
+out = "path or glob"
+cmd = "string"
+
+# Inline array form (equivalent to [[build.steps]] / [[build.post_steps]])
+steps = [
+  { name = "string", in = "glob", out = "path or glob", cmd = "string" },
+]
+post_steps = [
+    { name = "string", in = "glob", out = "path or glob", cmd = "string" },
+]
+
+[build.debug]
+cflags = ["string", "..."]     # optional
+ldflags = ["string", "..."]    # optional
+
+[build.release]
+cflags = ["string", "..."]     # optional
+ldflags = ["string", "..."]    # optional
 
 [toolchain]
 cc = "string"   # optional
@@ -23,6 +59,12 @@ cxx = "string"  # optional
 as = "string"   # optional
 ar = "string"   # optional
 ld = "string"   # optional
+uic = "string"  # optional
+moc = "string"  # optional
+rcc = "string"  # optional
+
+[run]
+cmd = "string"  # optional
 
 [workspace]
 name = { path = "string", deps = ["string", "..."] }
@@ -42,6 +84,15 @@ name = {
 - Required string fields must be non-empty.
 - `build.kind` must be `bin`, `staticlib`, or `sharedlib`.
 - Dependency fields `include/lib/libs` must be string arrays when provided.
+- `build.exclude`/`build.include` must be string arrays when provided.
+- `build.roots` must be a string array when provided.
+- `build.src_disable` must be boolean when provided.
+- `build.clean`/`build.generated`/`build.pkg_config`/`build.expect` must be string arrays when provided.
+- `build.debug`/`build.release` must be tables; their `cflags`/`ldflags` must be string arrays.
+- `build.steps`/`build.post_steps` entries must include `name`, `in`, `out`, `cmd`.
+- `build.language` may be a string or array (for example `["c", "c++", "asm"]`).
+- `[build.<profile>]` tables inherit all base values and override any fields they specify.
+  Array fields (like `cflags`/`ldflags`) are appended to the base array.
 
 ## Generated defaults (`dcr new` / `dcr init`)
 

src/cli/clean.rs

@@ -4,6 +4,7 @@ use crate::core::workspace::parse_workspace;
 use crate::utils::fs::{check_dir, find_project_root};
 use crate::utils::log::{error, warn};
 use crate::utils::text::{BOLD_GREEN, colored};
+use glob::glob;
 use std::fs;
 use std::path::Path;
 
@@ -85,6 +86,7 @@ fn clean_from_root(root: &Path, flags: &CleanFlags) -> Result<(), String> {
 
 fn clean_project_at(project_root: &Path, profile: Option<&str>) -> Result<(), String> {
     with_dir(project_root, || {
+        let config = Config::open("./dcr.toml").map_err(|err| err.to_string())?;
         let project_name = std::env::current_dir()
             .ok()
             .and_then(|p| p.file_name().map(|v| v.to_string_lossy().to_string()))
@@ -97,31 +99,33 @@ fn clean_project_at(project_root: &Path, profile: Option<&str>) -> Result<(), St
             "    Cleaning project `{}`",
             colored(&project_name, BOLD_GREEN)
         );
-        if !items.contains(&"target".to_string()) {
-            warn("Directory target not found");
-            return Ok(());
-        }
-
         if let Some(profile) = profile {
             let target_items = check_dir(Some("target")).unwrap_or_default();
             if !target_items.contains(&profile.to_string()) {
                 warn(&format!("Directory target/{profile} not found"));
-                return Ok(());
+            } else {
+                println!("    Profile: {}", colored(profile, BOLD_GREEN));
+                let _ = fs::remove_dir_all(format!("target/{profile}"));
+                println!(
+                    "{} Removed directory target/{profile}",
+                    colored("\n    ✔", BOLD_GREEN)
+                );
             }
-            println!("    Profile: {}", colored(profile, BOLD_GREEN));
+            clean_custom_paths(&config, profile)?;
-            let _ = fs::remove_dir_all(format!("target/{profile}"));
-            println!(
-                "{} Removed directory target/{profile}",
-                colored("\n    ✔", BOLD_GREEN)
-            );
             return Ok(());
         }
 
-        let _ = fs::remove_dir_all("target");
+        if items.contains(&"target".to_string()) {
-        println!(
+            let _ = fs::remove_dir_all("target");
-            "{} Removed directory target",
+            println!(
-            colored("\n    ✔", BOLD_GREEN)
+                "{} Removed directory target",
-        );
+                colored("\n    ✔", BOLD_GREEN)
+            );
+        } else {
+            warn("Directory target not found");
+        }
+        clean_custom_paths(&config, "debug")?;
+        clean_custom_paths(&config, "release")?;
         Ok(())
     })
 }
@@ -136,3 +140,86 @@ where
     let _ = std::env::set_current_dir(prev);
     result
 }
+
+fn clean_custom_paths(config: &Config, profile: &str) -> Result<(), String> {
+    let patterns = match config.get("build.clean") {
+        Some(v) => v
+            .as_array()
+            .ok_or_else(|| "build.clean must be an array of strings".to_string())?
+            .iter()
+            .filter_map(|item| item.as_str())
+            .map(|s| {
+                let value = s.replace("{profile}", profile);
+                substitute_version_vars(&value, config)
+            })
+            .collect::<Vec<String>>(),
+        None => Vec::new(),
+    };
+    if patterns.is_empty() {
+        return Ok(());
+    }
+    for pattern in patterns {
+        for entry in glob(&pattern).map_err(|err| format!("glob error: {err}"))? {
+            let path = entry.map_err(|err| format!("glob error: {err}"))?;
+            if path.is_dir() {
+                let _ = fs::remove_dir_all(&path);
+            } else if path.is_file() {
+                let _ = fs::remove_file(&path);
+            }
+        }
+    }
+    Ok(())
+}
+
+fn substitute_version_vars(value: &str, config: &Config) -> String {
+    let version = config
+        .get("package.version")
+        .and_then(|v| v.as_str())
+        .unwrap_or("");
+    let info = parse_version_info(version);
+    value
+        .replace("{version}", &info.full)
+        .replace("{version_major}", &info.major)
+        .replace("{version_minor}", &info.minor)
+        .replace("{version_patch}", &info.patch)
+        .replace("{version_suffix}", &info.suffix)
+        .replace("{version_suffix_dash}", &info.suffix_dash)
+}
+
+struct VersionInfo {
+    full: String,
+    major: String,
+    minor: String,
+    patch: String,
+    suffix: String,
+    suffix_dash: String,
+}
+
+fn parse_version_info(version: &str) -> VersionInfo {
+    let mut full = version.trim().to_string();
+    if full.is_empty() {
+        full = "0.0.0".to_string();
+    }
+    let full_clone = full.clone();
+    let (base, suffix) = match full_clone.split_once('-') {
+        Some((head, tail)) => (head, tail),
+        None => (full_clone.as_str(), ""),
+    };
+    let mut parts = base.split('.');
+    let major = parts.next().unwrap_or("0").to_string();
+    let minor = parts.next().unwrap_or("0").to_string();
+    let patch = parts.next().unwrap_or("0").to_string();
+    let suffix_dash = if suffix.is_empty() {
+        "".to_string()
+    } else {
+        format!("-{suffix}")
+    };
+    VersionInfo {
+        full,
+        major,
+        minor,
+        patch,
+        suffix: suffix.to_string(),
+        suffix_dash,
+    }
+}

src/cli/flags.rs

@@ -0,0 +1,46 @@
+use crate::config::{PROFILE, flags};
+use crate::utils::log::warn;
+
+pub struct BuildRunFlags {
+    pub profile: String,
+    pub force: bool,
+    pub clean: bool,
+}
+
+pub fn parse_build_run_flags(args: &[String]) -> Result<BuildRunFlags, i32> {
+    let mut profile = PROFILE.to_string();
+    let mut force = false;
+    let mut clean = false;
+
+    for arg in args {
+        if !arg.starts_with("--") {
+            warn("Unknown argument");
+            return Err(1);
+        }
+        let candidate = arg.trim_start_matches("--");
+        if candidate == "force" {
+            force = true;
+            continue;
+        }
+        if candidate == "clean" {
+            clean = true;
+            continue;
+        }
+        if flags(candidate).is_some() {
+            if profile != PROFILE {
+                warn("Duplicate profile flag");
+                return Err(1);
+            }
+            profile = candidate.to_string();
+            continue;
+        }
+        warn("Unknown build flag");
+        return Err(1);
+    }
+
+    Ok(BuildRunFlags {
+        profile,
+        force,
+        clean,
+    })
+}

src/cli/help.rs

@@ -13,14 +13,18 @@ pub fn help() -> i32 {
     println!("    build [--profile] Build the project (default: --debug)");
     println!("    run [--profile]   Build and run the project (default: --debug)");
     println!("    clean             Remove the target directory");
+    println!("    gen <subcommand>  Generate IDE integration files");
     printc("FLAGS:", BOLD_GREEN);
     println!("    --help            Show command help");
     println!("    --update          Update dcr to the latest version");
     println!("    --version         Show dcr version");
     println!();
     printc("OPTIONS:", BOLD_GREEN);
-    println!("    --debug           Build with debug profile");
+    println!("    --debug           Use debug profile");
-    println!("    --release         Build with release profile");
+    println!("    --release         Use release profile");
+    println!("    --force           Force rebuild (build/run)");
+    println!("    --clean           Clean before build (build/run)");
+    println!("    --all             Clean all workspace members (clean)");
     println!();
     printc("EXAMPLES:", BOLD_GREEN);
     printc("    dcr new hello", BOLD_CYAN);

src/cli/mod.rs

@@ -1,6 +1,8 @@
 pub mod build;
 pub mod clean;
 pub mod flag_update;
+pub mod flags;
+pub mod r#gen;
 pub mod help;
 pub mod init;
 pub mod new;

src/cli/run.rs

@@ -1,15 +1,14 @@
 use crate::cli::build::build;
-use crate::config::{PROFILE, flags};
+use crate::cli::flags::parse_build_run_flags;
 use crate::core::config::Config;
 use crate::core::runner::run_binary;
 use crate::utils::fs::find_project_root;
-use crate::utils::log::{error, warn};
+use crate::utils::log::error;
 use crate::utils::text::{BOLD_GREEN, colored};
 use std::path::Path;
+use std::process::Command;
 
 pub fn run(args: &[String]) -> i32 {
-    let mut active_profile = PROFILE.to_string();
-
     let start_dir = match std::env::current_dir() {
         Ok(dir) => dir,
         Err(_) => {
@@ -51,35 +50,45 @@ pub fn run(args: &[String]) -> i32 {
         .map(|s| s.trim())
         .filter(|s| !s.is_empty());
 
-    if let Some(first_arg) = args.first() {
+    let flags = match parse_build_run_flags(args) {
-        if first_arg.starts_with("--") {
+        Ok(v) => v,
-            let candidate = first_arg.trim_start_matches("--");
+        Err(_) => return 1,
-            if flags(candidate).is_some() {
+    };
-                active_profile = candidate.to_string();
+
-            } else {
+    let version = config
-                warn("Unknown build flag");
+        .get("package.version")
-                return 1;
+        .and_then(|v| v.as_str())
-            }
+        .unwrap_or("");
-        } else {
+    let run_cmd = config
-            warn("Unknown argument");
+        .get("run.cmd")
-            return 1;
+        .and_then(|v| v.as_str())
-        }
+        .map(|s| s.trim().to_string())
-    }
+        .filter(|s| !s.is_empty())
+        .map(|cmd| substitute_run_vars(&cmd, &flags.profile, version));
 
     let kind = build_kind.trim();
-    if kind == "staticlib" || kind == "sharedlib" {
+    if run_cmd.is_none() && (kind == "staticlib" || kind == "sharedlib") {
         error("Cannot run library build");
         return 1;
     }
     let build_status = build(args);
-    let bin_path = crate::platform::bin_path(&active_profile, project_name, target_dir);
+    let bin_path = crate::platform::bin_path(&flags.profile, project_name, target_dir);
     if build_status == 0 {
+        if let Some(cmd) = run_cmd {
+            println!("\n    {} {}", colored("Running", BOLD_GREEN), cmd);
+            println!("--------------------------------");
+            return run_shell(&cmd);
+        }
         println!("\n    {} {}", colored("Running", BOLD_GREEN), bin_path);
         println!("--------------------------------");
-        return run_binary(project_name, &active_profile, target_dir);
+        return run_binary(project_name, &flags.profile, target_dir);
     }
 
-    let fallback_code = run_binary(project_name, &active_profile, target_dir);
+    let fallback_code = if let Some(cmd) = run_cmd {
+        run_shell(&cmd)
+    } else {
+        run_binary(project_name, &flags.profile, target_dir)
+    };
     if fallback_code != 1 {
         return fallback_code;
     }
@@ -98,3 +107,65 @@ where
     let _ = std::env::set_current_dir(prev);
     result
 }
+
+fn run_shell(cmd: &str) -> i32 {
+    let status = if cfg!(target_os = "windows") {
+        Command::new("cmd").arg("/C").arg(cmd).status()
+    } else {
+        Command::new("sh").arg("-c").arg(cmd).status()
+    };
+    match status {
+        Ok(s) if s.success() => 0,
+        Ok(s) => s.code().unwrap_or(1),
+        Err(_) => 1,
+    }
+}
+
+fn substitute_run_vars(cmd: &str, profile: &str, version: &str) -> String {
+    let info = parse_version_info(version);
+    cmd.replace("{profile}", profile)
+        .replace("{version}", &info.full)
+        .replace("{version_major}", &info.major)
+        .replace("{version_minor}", &info.minor)
+        .replace("{version_patch}", &info.patch)
+        .replace("{version_suffix}", &info.suffix)
+        .replace("{version_suffix_dash}", &info.suffix_dash)
+}
+
+struct VersionInfo {
+    full: String,
+    major: String,
+    minor: String,
+    patch: String,
+    suffix: String,
+    suffix_dash: String,
+}
+
+fn parse_version_info(version: &str) -> VersionInfo {
+    let mut full = version.trim().to_string();
+    if full.is_empty() {
+        full = "0.0.0".to_string();
+    }
+    let full_clone = full.clone();
+    let (base, suffix) = match full_clone.split_once('-') {
+        Some((head, tail)) => (head, tail),
+        None => (full_clone.as_str(), ""),
+    };
+    let mut parts = base.split('.');
+    let major = parts.next().unwrap_or("0").to_string();
+    let minor = parts.next().unwrap_or("0").to_string();
+    let patch = parts.next().unwrap_or("0").to_string();
+    let suffix_dash = if suffix.is_empty() {
+        "".to_string()
+    } else {
+        format!("-{suffix}")
+    };
+    VersionInfo {
+        full,
+        major,
+        minor,
+        patch,
+        suffix: suffix.to_string(),
+        suffix_dash,
+    }
+}

src/config.rs

@@ -16,7 +16,7 @@ pub fn flags(profile: &str) -> Option<&'static [&'static str]> {
             "-Wall",
             "-Wextra",
             "-fno-omit-frame-pointer",
-            "-DDEBUG",
+            "-DDCR_DEBUG",
         ]),
         _ => None,
     }

src/core/builder/common.rs

@@ -2,33 +2,37 @@ use std::fs;
 use std::path::{Path, PathBuf};
 
 pub fn collect_sources(
+    roots: &[PathBuf],
     extensions: &[&str],
     exclude_dirs: &[PathBuf],
+    include_paths: &[String],
 ) -> Result<Vec<String>, String> {
     let mut sources = Vec::new();
-    collect_sources_rec("./src", extensions, &mut sources, exclude_dirs)?;
+    for root in roots {
+        collect_sources_rec(root, extensions, &mut sources, exclude_dirs, include_paths)?;
+    }
     sources.sort();
     if sources.is_empty() {
-        return Err("No source files found in ./src".to_string());
+        return Err(format!("No source files found in {}", format_roots(roots)));
     }
     Ok(sources)
 }
 
 fn collect_sources_rec(
-    dir: &str,
+    dir: &Path,
     extensions: &[&str],
     out: &mut Vec<String>,
     exclude_dirs: &[PathBuf],
+    include_paths: &[String],
 ) -> Result<(), String> {
-    let dir_path = Path::new(dir);
+    let full_dir = if dir.is_absolute() {
-    let full_dir = if dir_path.is_absolute() {
+        dir.to_path_buf()
-        dir_path.to_path_buf()
     } else {
         std::env::current_dir()
             .map_err(|err| format!("src dir error: {err}"))?
-            .join(dir_path)
+            .join(dir)
     };
-    if is_excluded(&full_dir, exclude_dirs) {
+    if is_excluded(&full_dir, exclude_dirs, include_paths) && include_paths.is_empty() {
         return Ok(());
     }
     let entries = fs::read_dir(&full_dir).map_err(|err| format!("src dir error: {err}"))?;
@@ -36,15 +40,18 @@ fn collect_sources_rec(
         let entry = entry.map_err(|err| format!("src dir error: {err}"))?;
         let path = entry.path();
         if path.is_dir() {
-            if is_excluded(&path, exclude_dirs) {
+            if is_excluded(&path, exclude_dirs, include_paths) && include_paths.is_empty() {
                 continue;
             }
-            collect_sources_rec(&path.to_string_lossy(), extensions, out, exclude_dirs)?;
+            collect_sources_rec(&path, extensions, out, exclude_dirs, include_paths)?;
             continue;
         }
         if !path.is_file() {
             continue;
         }
+        if is_excluded(&path, exclude_dirs, include_paths) {
+            continue;
+        }
         let ext_raw = path.extension().and_then(|v| v.to_str()).unwrap_or("");
         let ext_lower = ext_raw.to_lowercase();
         let matched = extensions
@@ -57,10 +64,95 @@ fn collect_sources_rec(
     Ok(())
 }
 
-pub fn is_excluded(path: &Path, exclude_dirs: &[PathBuf]) -> bool {
+fn format_roots(roots: &[PathBuf]) -> String {
+    if roots.is_empty() {
+        return "<none>".to_string();
+    }
+    let mut out = Vec::new();
+    for root in roots {
+        out.push(root.to_string_lossy().to_string());
+    }
+    out.join(", ")
+}
+
+pub fn is_excluded(path: &Path, exclude_dirs: &[PathBuf], include_paths: &[String]) -> bool {
+    if matches_patterns(path, include_paths, true) {
+        return false;
+    }
+    if matches_patterns(path, include_paths, false) {
+        return true;
+    }
     exclude_dirs.iter().any(|dir| path.starts_with(dir))
 }
 
+fn matches_patterns(path: &Path, patterns: &[String], positive: bool) -> bool {
+    if patterns.is_empty() {
+        return false;
+    }
+    let cwd = std::env::current_dir().ok();
+    let abs_path = if path.is_absolute() {
+        path.to_path_buf()
+    } else if let Some(base) = cwd.as_ref() {
+        base.join(path)
+    } else {
+        path.to_path_buf()
+    };
+    let abs = abs_path.to_string_lossy().replace('\\', "/");
+    let rel = cwd
+        .as_ref()
+        .and_then(|base| abs_path.strip_prefix(base).ok())
+        .map(|p| p.to_string_lossy().replace('\\', "/"))
+        .unwrap_or_default();
+    let rel_dot = if rel.is_empty() {
+        String::new()
+    } else {
+        format!("./{rel}")
+    };
+    for raw in patterns {
+        let trimmed = raw.trim();
+        if trimmed.is_empty() {
+            continue;
+        }
+        let is_neg = trimmed.starts_with('!');
+        if is_neg == positive {
+            continue;
+        }
+        let normalized = trimmed.trim_start_matches('!').replace('\\', "/");
+        if normalized.is_empty() {
+            continue;
+        }
+        if has_glob_magic(&normalized) {
+            let pat = match glob::Pattern::new(&normalized) {
+                Ok(p) => p,
+                Err(_) => continue,
+            };
+            if pat.matches(&abs)
+                || (!rel.is_empty() && (pat.matches(&rel) || pat.matches(&rel_dot)))
+            {
+                return true;
+            }
+            continue;
+        }
+        let norm = normalized.trim_end_matches('/');
+        let candidate = Path::new(norm);
+        let full = if candidate.is_absolute() {
+            candidate.to_path_buf()
+        } else if let Some(base) = cwd.as_ref() {
+            base.join(candidate)
+        } else {
+            candidate.to_path_buf()
+        };
+        if abs_path.starts_with(&full) {
+            return true;
+        }
+    }
+    false
+}
+
+pub fn has_glob_magic(value: &str) -> bool {
+    value.chars().any(|c| matches!(c, '*' | '?' | '['))
+}
+
 pub fn normalize_source_path(path: &Path) -> String {
     if !path.is_absolute() {
         return path.to_string_lossy().to_string();
@@ -175,9 +267,11 @@ mod tests {
     use super::*;
     use std::fs;
     use std::path::PathBuf;
+    use std::sync::Mutex;
     use std::sync::atomic::{AtomicUsize, Ordering};
 
     static TEST_COUNTER: AtomicUsize = AtomicUsize::new(0);
+    static CWD_LOCK: Mutex<()> = Mutex::new(());
 
     fn temp_dir(prefix: &str) -> PathBuf {
         let n = TEST_COUNTER.fetch_add(1, Ordering::SeqCst);
@@ -187,6 +281,10 @@ mod tests {
         dir
     }
 
+    fn default_roots() -> Vec<PathBuf> {
+        vec![PathBuf::from("src")]
+    }
+
     #[test]
     fn object_path_basic() {
         let obj_dir = Path::new("target/debug/obj");
@@ -258,19 +356,34 @@ mod tests {
 
     #[test]
     fn is_excluded_match() {
+        let include: Vec<String> = Vec::new();
         let excluded = vec![PathBuf::from("/project/src/vendor")];
-        assert!(is_excluded(Path::new("/project/src/vendor"), &excluded));
+        assert!(is_excluded(
+            Path::new("/project/src/vendor"),
+            &excluded,
+            &include
+        ));
         assert!(is_excluded(
             Path::new("/project/src/vendor/lib.c"),
-            &excluded
+            &excluded,
+            &include
         ));
     }
 
     #[test]
     fn is_excluded_no_match() {
+        let include: Vec<String> = Vec::new();
         let excluded = vec![PathBuf::from("/project/src/vendor")];
-        assert!(!is_excluded(Path::new("/project/src/main.c"), &excluded));
+        assert!(!is_excluded(
-        assert!(!is_excluded(Path::new("/other/vendor"), &excluded));
+            Path::new("/project/src/main.c"),
+            &excluded,
+            &include
+        ));
+        assert!(!is_excluded(
+            Path::new("/other/vendor"),
+            &excluded,
+            &include
+        ));
     }
 
     #[test]
@@ -282,9 +395,12 @@ mod tests {
         fs::write(src.join("utils.c"), "").unwrap();
         fs::write(src.join("README.md"), "").unwrap(); // should be ignored
 
+        let _guard = CWD_LOCK.lock().unwrap();
         let prev = std::env::current_dir().unwrap();
         std::env::set_current_dir(&dir).unwrap();
-        let result = collect_sources(&["c"], &[]);
+        let include: Vec<String> = Vec::new();
+        let roots = default_roots();
+        let result = collect_sources(&roots, &["c"], &[], &include);
         std::env::set_current_dir(prev).unwrap();
 
         let sources = result.expect("should find sources");
@@ -303,9 +419,12 @@ mod tests {
         fs::write(src.join("other.cc"), "").unwrap();
         fs::write(src.join("skip.c"), "").unwrap(); // should be ignored
 
+        let _guard = CWD_LOCK.lock().unwrap();
         let prev = std::env::current_dir().unwrap();
         std::env::set_current_dir(&dir).unwrap();
-        let result = collect_sources(&["cpp", "cxx", "cc"], &[]);
+        let include: Vec<String> = Vec::new();
+        let roots = default_roots();
+        let result = collect_sources(&roots, &["cpp", "cxx", "cc"], &[], &include);
         std::env::set_current_dir(prev).unwrap();
 
         let sources = result.expect("should find sources");
@@ -318,9 +437,12 @@ mod tests {
         let src = dir.join("src");
         fs::create_dir_all(&src).unwrap();
 
+        let _guard = CWD_LOCK.lock().unwrap();
         let prev = std::env::current_dir().unwrap();
         std::env::set_current_dir(&dir).unwrap();
-        let result = collect_sources(&["c"], &[]);
+        let include: Vec<String> = Vec::new();
+        let roots = default_roots();
+        let result = collect_sources(&roots, &["c"], &[], &include);
         std::env::set_current_dir(prev).unwrap();
 
         assert!(result.is_err(), "empty src should return error");
@@ -336,9 +458,12 @@ mod tests {
         fs::write(vendor.join("lib.c"), "").unwrap(); // should be excluded
 
         let exclude = vec![vendor.clone()];
+        let _guard = CWD_LOCK.lock().unwrap();
         let prev = std::env::current_dir().unwrap();
         std::env::set_current_dir(&dir).unwrap();
-        let result = collect_sources(&["c"], &exclude);
+        let include: Vec<String> = Vec::new();
+        let roots = default_roots();
+        let result = collect_sources(&roots, &["c"], &exclude, &include);
         std::env::set_current_dir(prev).unwrap();
 
         let sources = result.expect("should find sources");
@@ -355,15 +480,92 @@ mod tests {
         fs::write(src.join("main.c"), "").unwrap();
         fs::write(sub.join("nested.c"), "").unwrap();
 
+        let _guard = CWD_LOCK.lock().unwrap();
         let prev = std::env::current_dir().unwrap();
         std::env::set_current_dir(&dir).unwrap();
-        let result = collect_sources(&["c"], &[]);
+        let include: Vec<String> = Vec::new();
+        let roots = default_roots();
+        let result = collect_sources(&roots, &["c"], &[], &include);
         std::env::set_current_dir(prev).unwrap();
 
         let sources = result.expect("should find sources");
         assert_eq!(sources.len(), 2);
     }
 
+    #[test]
+    fn include_overrides_exclude() {
+        let dir = temp_dir("include_override");
+        let src = dir.join("src");
+        let boot = src.join("boot");
+        let arch = boot.join("arch");
+        fs::create_dir_all(&arch).unwrap();
+        fs::write(arch.join("start.s"), "").unwrap();
+        fs::write(boot.join("skip.c"), "").unwrap();
+
+        let exclude = vec![boot.clone()];
+        let include = vec!["src/boot/arch/**".to_string()];
+        let _guard = CWD_LOCK.lock().unwrap();
+        let prev = std::env::current_dir().unwrap();
+        std::env::set_current_dir(&dir).unwrap();
+        let roots = default_roots();
+        let result = collect_sources(&roots, &["s", "c"], &exclude, &include);
+        std::env::set_current_dir(prev).unwrap();
+
+        let sources = result.expect("should find sources");
+        assert_eq!(sources.len(), 1);
+        assert!(sources[0].ends_with("start.s"));
+    }
+
+    #[test]
+    fn exclude_glob_with_include_override() {
+        let dir = temp_dir("exclude_glob");
+        let src = dir.join("src");
+        let legacy = src.join("legacy");
+        let allow = legacy.join("allow");
+        fs::create_dir_all(&allow).unwrap();
+        fs::write(legacy.join("skip.c"), "").unwrap();
+        fs::write(allow.join("keep.c"), "").unwrap();
+
+        let exclude = vec![dir.join("src"), dir.join(".")];
+        let include = vec![
+            "!src/legacy/**".to_string(),
+            "src/legacy/allow/**".to_string(),
+        ];
+        let _guard = CWD_LOCK.lock().unwrap();
+        let prev = std::env::current_dir().unwrap();
+        std::env::set_current_dir(&dir).unwrap();
+        let roots = default_roots();
+        let result = collect_sources(&roots, &["c"], &exclude, &include);
+        std::env::set_current_dir(prev).unwrap();
+
+        let sources = result.expect("should find sources");
+        assert_eq!(sources.len(), 1);
+        assert!(sources[0].ends_with("keep.c"));
+    }
+
+    #[test]
+    fn exclude_glob_without_include_keeps_other_files() {
+        let dir = temp_dir("exclude_glob_only");
+        let src = dir.join("src");
+        let gen_dir = src.join("gen");
+        fs::create_dir_all(&gen_dir).unwrap();
+        fs::write(src.join("main.c"), "").unwrap();
+        fs::write(gen_dir.join("skip.c"), "").unwrap();
+
+        let exclude: Vec<PathBuf> = Vec::new();
+        let include = vec!["!src/gen/**".to_string()];
+        let _guard = CWD_LOCK.lock().unwrap();
+        let prev = std::env::current_dir().unwrap();
+        std::env::set_current_dir(&dir).unwrap();
+        let roots = default_roots();
+        let result = collect_sources(&roots, &["c"], &exclude, &include);
+        std::env::set_current_dir(prev).unwrap();
+
+        let sources = result.expect("should find sources");
+        assert_eq!(sources.len(), 1);
+        assert!(sources[0].ends_with("main.c"));
+    }
+
     #[test]
     fn normalize_relative_path() {
         let result = normalize_source_path(Path::new("./src/main.c"));

src/core/builder/gas.rs

@@ -7,7 +7,8 @@ use std::process::Command;
 use std::time::Instant;
 
 pub fn build(ctx: &BuildContext) -> Result<f64, String> {
-    if ctx.language.to_lowercase().as_str() != "asm" {
+    let lang = ctx.language.to_lowercase();
+    if lang.split('+').any(|p| p.trim() != "asm") {
         return Err("GAS backend requires build.language = \"asm\"".to_string());
     }
     let assembler = if ctx.compiler.is_empty() {
@@ -36,6 +37,9 @@ pub fn build(ctx: &BuildContext) -> Result<f64, String> {
         for obj in &objects {
             cmd.arg(obj);
         }
+        if std::env::var("DCR_DEBUG").is_ok() {
+            eprintln!("[dcr] {:?}", cmd);
+        }
         match cmd.status() {
             Ok(status) if status.success() => {
                 let elapsed = ((start_time.elapsed().as_secs_f64() * 100.0).trunc()) / 100.0;
@@ -73,6 +77,9 @@ pub fn build(ctx: &BuildContext) -> Result<f64, String> {
     };
     cmd.arg("-o").arg(out_path);
 
+    if std::env::var("DCR_DEBUG").is_ok() {
+        eprintln!("[dcr] {:?}", cmd);
+    }
     match cmd.status() {
         Ok(status) if status.success() => {
             let elapsed = ((start_time.elapsed().as_secs_f64() * 100.0).trunc()) / 100.0;
@@ -85,7 +92,12 @@ pub fn build(ctx: &BuildContext) -> Result<f64, String> {
 
 pub(crate) fn collect_sources(ctx: &BuildContext) -> Result<Vec<String>, String> {
     // GAS handles only lowercase .s files
-    common::collect_sources(&["s"], ctx.exclude_dirs)
+    common::collect_sources(
+        ctx.source_roots,
+        &["s"],
+        ctx.exclude_dirs,
+        ctx.include_paths,
+    )
 }
 
 fn build_objects(

src/core/builder/mod.rs

@@ -15,7 +15,9 @@ pub struct BuildContext<'a> {
     pub platform: Option<&'a str>,
     pub linker: Option<&'a str>,
     pub archiver: Option<&'a str>,
+    pub source_roots: &'a [std::path::PathBuf],
     pub exclude_dirs: &'a [std::path::PathBuf],
+    pub include_paths: &'a [String],
     pub include_dirs: &'a [String],
     pub lib_dirs: &'a [String],
     pub libs: &'a [String],

src/core/builder/msvc.rs

@@ -12,8 +12,9 @@ pub fn build(ctx: &BuildContext) -> Result<f64, String> {
     } else {
         ctx.compiler
     };
-    if ctx.language.to_lowercase() == "asm" {
+    let lang = ctx.language.to_lowercase();
-        return Err("MSVC backend does not support build.language = \"asm\"".to_string());
+    if lang.contains("asm") {
+        return Err("MSVC backend does not support build.language with asm".to_string());
     }
     let start_time = Instant::now();
     let sources = collect_sources(ctx)?;
@@ -27,6 +28,9 @@ pub fn build(ctx: &BuildContext) -> Result<f64, String> {
         for obj in &objects {
             cmd.arg(obj);
         }
+        if std::env::var("DCR_DEBUG").is_ok() {
+            eprintln!("[dcr] {:?}", cmd);
+        }
         match cmd.status() {
             Ok(status) if status.success() => {
                 let elapsed = ((start_time.elapsed().as_secs_f64() * 100.0).trunc()) / 100.0;
@@ -91,6 +95,9 @@ pub fn build(ctx: &BuildContext) -> Result<f64, String> {
     };
     cmd.arg(format!("/Fe:{out_path}"));
 
+    if std::env::var("DCR_DEBUG").is_ok() {
+        eprintln!("[dcr] {:?}", cmd);
+    }
     match cmd.status() {
         Ok(status) if status.success() => {
             let elapsed = ((start_time.elapsed().as_secs_f64() * 100.0).trunc()) / 100.0;
@@ -103,16 +110,29 @@ pub fn build(ctx: &BuildContext) -> Result<f64, String> {
 
 pub(crate) fn collect_sources(ctx: &BuildContext) -> Result<Vec<String>, String> {
     let extensions = source_extensions(ctx.language);
-    common::collect_sources(&extensions, ctx.exclude_dirs)
+    common::collect_sources(
+        ctx.source_roots,
+        &extensions,
+        ctx.exclude_dirs,
+        ctx.include_paths,
+    )
 }
 
 fn source_extensions(language: &str) -> Vec<&str> {
-    let lang = language.to_lowercase();
+    let mut out = Vec::new();
-    match lang.as_str() {
+    for part in language.split('+') {
-        "c" => vec!["c"],
+        let lang = part.trim().to_lowercase();
-        "c++" | "cpp" | "cxx" => vec!["cpp", "cxx", "cc"],
+        match lang.as_str() {
-        _ => vec!["c"],
+            "c" => out.extend(["c"]),
+            "c++" | "cpp" | "cxx" => out.extend(["cpp", "cxx", "cc"]),
+            "asm" => {}
+            _ => {}
+        }
     }
+    if out.is_empty() {
+        out.extend(["c"]);
+    }
+    out
 }
 
 fn msvc_standard_flag(language: &str, standard: &str) -> Result<String, String> {
@@ -158,7 +178,7 @@ fn msvc_arch_flag(platform: Option<&str>) -> Option<&'static str> {
 fn default_flags(profile: &str) -> &'static [&'static str] {
     match profile {
         "release" => &["/O2", "/DNDEBUG"],
-        "debug" => &["/Od", "/Zi", "/W4", "/DDEBUG", "/Oy-"],
+        "debug" => &["/Od", "/Zi", "/W4", "/DDCR_DEBUG", "/Oy-"],
         _ => &[],
     }
 }
@@ -209,6 +229,9 @@ fn build_objects(
             cmd.arg("/c").arg(source).arg(format!("/Fo:{}", obj_path));
             cmd.arg("/showIncludes");
 
+            if std::env::var("DCR_DEBUG").is_ok() {
+                eprintln!("[dcr] {:?}", cmd);
+            }
             let output = cmd.output().map_err(|err| format!("Build failed: {err}"))?;
             let stdout = String::from_utf8_lossy(&output.stdout);
             let stderr = String::from_utf8_lossy(&output.stderr);

src/core/builder/nasm.rs

@@ -7,7 +7,8 @@ use std::process::Command;
 use std::time::Instant;
 
 pub fn build(ctx: &BuildContext) -> Result<f64, String> {
-    if ctx.language.to_lowercase().as_str() != "asm" {
+    let lang = ctx.language.to_lowercase();
+    if lang.split('+').any(|p| p.trim() != "asm") {
         return Err("NASM backend requires build.language = \"asm\"".to_string());
     }
     let assembler = if ctx.compiler.is_empty() {
@@ -36,6 +37,9 @@ pub fn build(ctx: &BuildContext) -> Result<f64, String> {
         for obj in &objects {
             cmd.arg(obj);
         }
+        if std::env::var("DCR_DEBUG").is_ok() {
+            eprintln!("[dcr] {:?}", cmd);
+        }
         match cmd.status() {
             Ok(status) if status.success() => {
                 let elapsed = ((start_time.elapsed().as_secs_f64() * 100.0).trunc()) / 100.0;
@@ -73,6 +77,9 @@ pub fn build(ctx: &BuildContext) -> Result<f64, String> {
     };
     cmd.arg("-o").arg(out_path);
 
+    if std::env::var("DCR_DEBUG").is_ok() {
+        eprintln!("[dcr] {:?}", cmd);
+    }
     match cmd.status() {
         Ok(status) if status.success() => {
             let elapsed = ((start_time.elapsed().as_secs_f64() * 100.0).trunc()) / 100.0;
@@ -85,7 +92,12 @@ pub fn build(ctx: &BuildContext) -> Result<f64, String> {
 
 pub(crate) fn collect_sources(ctx: &BuildContext) -> Result<Vec<String>, String> {
     // NASM handles lowercase .s and .asm only (not .S which is GCC preprocessed)
-    common::collect_sources(&["asm", "s"], ctx.exclude_dirs)
+    common::collect_sources(
+        ctx.source_roots,
+        &["asm", "s"],
+        ctx.exclude_dirs,
+        ctx.include_paths,
+    )
 }
 
 fn build_objects(
@@ -112,6 +124,9 @@ fn build_objects(
             for flag in ctx.cflags {
                 cmd.arg(flag);
             }
+            if std::env::var("DCR_DEBUG").is_ok() {
+                eprintln!("[dcr] {:?}", cmd);
+            }
             match cmd.status() {
                 Ok(status) if status.success() => {}
                 Ok(_) => return Err("Build failed".to_string()),

src/core/builder/unix_cc.rs

@@ -14,7 +14,12 @@ pub fn build(ctx: &BuildContext) -> Result<f64, String> {
     };
     let start_time = Instant::now();
     let extensions = source_extensions(ctx.language);
-    let sources = common::collect_sources(&extensions, ctx.exclude_dirs)?;
+    let sources = common::collect_sources(
+        ctx.source_roots,
+        &extensions,
+        ctx.exclude_dirs,
+        ctx.include_paths,
+    )?;
     let obj_dir = Path::new("./target").join(ctx.profile).join("obj");
     let objects = build_objects(compiler, &sources, &obj_dir, ctx, "o")?;
 
@@ -25,6 +30,9 @@ pub fn build(ctx: &BuildContext) -> Result<f64, String> {
         for obj in &objects {
             cmd.arg(obj);
         }
+        if std::env::var("DCR_DEBUG").is_ok() {
+            eprintln!("[dcr] {:?}", cmd);
+        }
         match cmd.status() {
             Ok(status) if status.success() => {
                 let elapsed = ((start_time.elapsed().as_secs_f64() * 100.0).trunc()) / 100.0;
@@ -62,6 +70,9 @@ pub fn build(ctx: &BuildContext) -> Result<f64, String> {
     };
     cmd.arg("-o").arg(out_path);
 
+    if std::env::var("DCR_DEBUG").is_ok() {
+        eprintln!("[dcr] {:?}", cmd);
+    }
     match cmd.status() {
         Ok(status) if status.success() => {
             let elapsed = ((start_time.elapsed().as_secs_f64() * 100.0).trunc()) / 100.0;
@@ -74,17 +85,29 @@ pub fn build(ctx: &BuildContext) -> Result<f64, String> {
 
 pub(crate) fn collect_sources(ctx: &BuildContext) -> Result<Vec<String>, String> {
     let extensions = source_extensions(ctx.language);
-    common::collect_sources(&extensions, ctx.exclude_dirs)
+    common::collect_sources(
+        ctx.source_roots,
+        &extensions,
+        ctx.exclude_dirs,
+        ctx.include_paths,
+    )
 }
 
 fn source_extensions(language: &str) -> Vec<&str> {
-    let lang = language.to_lowercase();
+    let mut out = Vec::new();
-    match lang.as_str() {
+    for part in language.split('+') {
-        "c" => vec!["c"],
+        let lang = part.trim().to_lowercase();
-        "c++" | "cpp" | "cxx" => vec!["cpp", "cxx", "cc"],
+        match lang.as_str() {
-        "asm" => vec!["s", "S", "asm"],
+            "c" => out.extend(["c"]),
-        _ => vec!["c"],
+            "c++" | "cpp" | "cxx" => out.extend(["cpp", "cxx", "cc"]),
+            "asm" => out.extend(["s", "S", "asm"]),
+            _ => {}
+        }
     }
+    if out.is_empty() {
+        out.extend(["c"]);
+    }
+    out
 }
 
 fn default_flags(profile: &str) -> &'static [&'static str] {
@@ -96,7 +119,7 @@ fn default_flags(profile: &str) -> &'static [&'static str] {
             "-Wall",
             "-Wextra",
             "-fno-omit-frame-pointer",
-            "-DDEBUG",
+            "-DDCR_DEBUG",
         ],
         _ => &[],
     }
@@ -133,6 +156,9 @@ fn build_objects(
                 cmd.arg(format!("-std={}", ctx.standard));
             }
             for flag in default_flags(ctx.profile) {
+                if ctx.platform.is_some() && *flag == "-march=native" {
+                    continue;
+                }
                 cmd.arg(flag);
             }
             for flag in ctx.cflags {
@@ -143,6 +169,9 @@ fn build_objects(
             }
             let d_path = Path::new(&obj_path).with_extension("d");
             cmd.arg("-MMD").arg("-MF").arg(&d_path);
+            if std::env::var("DCR_DEBUG").is_ok() {
+                eprintln!("[dcr] {:?}", cmd);
+            }
             match cmd.status() {
                 Ok(status) if status.success() => {}
                 Ok(_) => return Err("Build failed".to_string()),

src/core/config.rs

@@ -115,7 +115,12 @@ impl Config {
             .and_then(|v| v.as_table())
             .ok_or_else(|| ConfigError::Invalid("missing [build]".into()))?;
 
-        for key in ["language", "standard", "compiler"] {
+        if let Some(language) = build.get("language") {
+            self.validate_language(language)?;
+        } else {
+            return Err(ConfigError::Invalid("build.language is empty".into()));
+        }
+        for key in ["standard", "compiler"] {
             let value = build.get(key).and_then(|v| v.as_str()).unwrap_or("");
             if value.trim().is_empty() {
                 return Err(ConfigError::Invalid(format!("build.{key} is empty")));
@@ -144,6 +149,73 @@ impl Config {
                 return Err(ConfigError::Invalid("build.kind is invalid".into()));
             }
         }
+        if let Some(exclude) = build.get("exclude") {
+            let arr = exclude.as_array().ok_or_else(|| {
+                ConfigError::Invalid("build.exclude must be an array of strings".into())
+            })?;
+            for item in arr {
+                let s = item.as_str().unwrap_or("");
+                if s.trim().is_empty() {
+                    return Err(ConfigError::Invalid(
+                        "build.exclude contains empty value".into(),
+                    ));
+                }
+            }
+        }
+        if let Some(include) = build.get("include") {
+            let arr = include.as_array().ok_or_else(|| {
+                ConfigError::Invalid("build.include must be an array of strings".into())
+            })?;
+            for item in arr {
+                let s = item.as_str().unwrap_or("");
+                if s.trim().is_empty() {
+                    return Err(ConfigError::Invalid(
+                        "build.include contains empty value".into(),
+                    ));
+                }
+            }
+        }
+        if let Some(roots) = build.get("roots") {
+            let arr = roots.as_array().ok_or_else(|| {
+                ConfigError::Invalid("build.roots must be an array of strings".into())
+            })?;
+            for item in arr {
+                let s = item.as_str().unwrap_or("");
+                if s.trim().is_empty() {
+                    return Err(ConfigError::Invalid(
+                        "build.roots contains empty value".into(),
+                    ));
+                }
+            }
+        }
+        if let Some(src_disable) = build.get("src_disable")
+            && !src_disable.is_bool()
+        {
+            return Err(ConfigError::Invalid(
+                "build.src_disable must be a boolean".into(),
+            ));
+        }
+        if let Some(clean) = build.get("clean") {
+            let arr = clean.as_array().ok_or_else(|| {
+                ConfigError::Invalid("build.clean must be an array of strings".into())
+            })?;
+            for item in arr {
+                let s = item.as_str().unwrap_or("");
+                if s.trim().is_empty() {
+                    return Err(ConfigError::Invalid(
+                        "build.clean contains empty value".into(),
+                    ));
+                }
+            }
+        }
+        for profile in ["release", "debug"] {
+            if let Some(section) = build.get(profile) {
+                let table = section.as_table().ok_or_else(|| {
+                    ConfigError::Invalid(format!("build.{profile} must be a table"))
+                })?;
+                self.validate_profile_section(profile, table)?;
+            }
+        }
         self.validate_workspace()?;
         Ok(())
     }
@@ -161,6 +233,115 @@ impl Config {
 }
 
 impl Config {
+    fn validate_language(&self, value: &Value) -> Result<(), ConfigError> {
+        if let Some(s) = value.as_str() {
+            if s.trim().is_empty() {
+                return Err(ConfigError::Invalid("build.language is empty".into()));
+            }
+            return Ok(());
+        }
+        let arr = value
+            .as_array()
+            .ok_or_else(|| ConfigError::Invalid("build.language must be string or array".into()))?;
+        if arr.is_empty() {
+            return Err(ConfigError::Invalid("build.language is empty".into()));
+        }
+        for item in arr {
+            let s = item.as_str().unwrap_or("");
+            if s.trim().is_empty() {
+                return Err(ConfigError::Invalid(
+                    "build.language contains empty value".into(),
+                ));
+            }
+        }
+        Ok(())
+    }
+
+    fn validate_profile_section(
+        &self,
+        profile: &str,
+        table: &toml::value::Table,
+    ) -> Result<(), ConfigError> {
+        if let Some(lang) = table.get("language") {
+            self.validate_language(lang)?;
+        }
+        for key in ["standard", "compiler", "kind", "target", "platform"] {
+            if let Some(value) = table.get(key) {
+                let s = value.as_str().unwrap_or("");
+                if s.trim().is_empty() {
+                    return Err(ConfigError::Invalid(format!(
+                        "build.{profile}.{key} is empty"
+                    )));
+                }
+            }
+        }
+        if let Some(kind) = table.get("kind").and_then(|v| v.as_str()) {
+            let kind = kind.trim();
+            if !kind.is_empty() && kind != "bin" && kind != "staticlib" && kind != "sharedlib" {
+                return Err(ConfigError::Invalid(format!(
+                    "build.{profile}.kind is invalid"
+                )));
+            }
+        }
+        if let Some(src_disable) = table.get("src_disable")
+            && !src_disable.is_bool()
+        {
+            return Err(ConfigError::Invalid(format!(
+                "build.{profile}.src_disable must be boolean"
+            )));
+        }
+        for key in [
+            "cflags",
+            "ldflags",
+            "exclude",
+            "include",
+            "roots",
+            "pkg_config",
+            "generated",
+            "expect",
+            "clean",
+        ] {
+            if let Some(val) = table.get(key) {
+                let arr = val.as_array().ok_or_else(|| {
+                    ConfigError::Invalid(format!(
+                        "build.{profile}.{key} must be an array of strings"
+                    ))
+                })?;
+                for item in arr {
+                    let s = item.as_str().unwrap_or("");
+                    if s.trim().is_empty() {
+                        return Err(ConfigError::Invalid(format!(
+                            "build.{profile}.{key} contains empty value"
+                        )));
+                    }
+                }
+            }
+        }
+        for key in ["steps", "post_steps"] {
+            if let Some(val) = table.get(key) {
+                let arr = val.as_array().ok_or_else(|| {
+                    ConfigError::Invalid(format!("build.{profile}.{key} must be an array"))
+                })?;
+                for item in arr {
+                    let tbl = item.as_table().ok_or_else(|| {
+                        ConfigError::Invalid(format!(
+                            "build.{profile}.{key} entries must be tables"
+                        ))
+                    })?;
+                    for req in ["name", "in", "out", "cmd"] {
+                        let s = tbl.get(req).and_then(|v| v.as_str()).unwrap_or("");
+                        if s.trim().is_empty() {
+                            return Err(ConfigError::Invalid(format!(
+                                "build.{profile}.{key} missing {req}"
+                            )));
+                        }
+                    }
+                }
+            }
+        }
+        Ok(())
+    }
+
     fn validate_workspace(&self) -> Result<(), ConfigError> {
         let Some(workspace) = self.get("workspace").and_then(|v| v.as_table()) else {
             return Ok(());
@@ -264,7 +445,12 @@ fn format_toml(value: &Value) -> Result<String, ConfigError> {
         .and_then(|v| v.as_str())
         .unwrap_or("");
 
-    let language = build.get("language").and_then(|v| v.as_str()).unwrap_or("");
+    let language_value = build.get("language");
+    let language = match language_value {
+        Some(Value::String(s)) => s.to_string(),
+        Some(Value::Array(arr)) => format_string_array(&Value::Array(arr.clone())),
+        _ => "".to_string(),
+    };
     let standard = build.get("standard").and_then(|v| v.as_str()).unwrap_or("");
     let compiler = build.get("compiler").and_then(|v| v.as_str()).unwrap_or("");
 
@@ -274,7 +460,11 @@ fn format_toml(value: &Value) -> Result<String, ConfigError> {
     out.push_str(&format!("version = \"{version}\"\n\n"));
 
     out.push_str("[build]\n");
-    out.push_str(&format!("language = \"{language}\"\n"));
+    if language.starts_with('[') {
+        out.push_str(&format!("language = {language}\n"));
+    } else {
+        out.push_str(&format!("language = \"{language}\"\n"));
+    }
     out.push_str(&format!("standard = \"{standard}\"\n"));
     out.push_str(&format!("compiler = \"{compiler}\"\n"));
     let kind = build
@@ -474,6 +664,28 @@ mod tests {
         assert!(result.is_err(), "empty language should fail validation");
     }
 
+    #[test]
+    fn validate_language_array() {
+        let dir = temp_dir("lang_array");
+        let path = write_toml_file(
+            &dir,
+            "[package]\nname = \"test\"\nversion = \"0.1.0\"\n\n[build]\nlanguage = [\"c\", \"c++\", \"asm\"]\nstandard = \"c11\"\ncompiler = \"clang\"\n\n[dependencies]\n",
+        );
+        let result = Config::open(&path.to_string_lossy());
+        assert!(result.is_ok(), "language array should be valid");
+    }
+
+    #[test]
+    fn validate_language_array_empty_fails() {
+        let dir = temp_dir("lang_array_empty");
+        let path = write_toml_file(
+            &dir,
+            "[package]\nname = \"test\"\nversion = \"0.1.0\"\n\n[build]\nlanguage = []\nstandard = \"c11\"\ncompiler = \"clang\"\n\n[dependencies]\n",
+        );
+        let result = Config::open(&path.to_string_lossy());
+        assert!(result.is_err(), "empty language array should fail");
+    }
+
     #[test]
     fn validate_unknown_kind_fails() {
         let dir = temp_dir("bad_kind");

src/core/deps.rs

@@ -50,7 +50,8 @@ pub fn resolve_deps(
     let mut lock_packages = Vec::new();
 
     for dep in deps {
-        let dep_path = resolve_path(project_root, &dep.path_raw)?;
+        let dep_path_raw = expand_profile(&dep.path_raw, profile);
+        let dep_path = resolve_path(project_root, &dep_path_raw)?;
         if !dep_path.is_dir() {
             return Err(format!(
                 "Dependency '{}' path is not a directory: {}",
@@ -59,8 +60,13 @@ pub fn resolve_deps(
             ));
         }
 
-        let include = resolve_paths(&dep_path, dep.include_raw.as_deref(), &["include"])?;
+        let include = resolve_paths(&dep_path, dep.include_raw.as_deref(), &["include"], profile)?;
-        let lib = resolve_paths(&dep_path, dep.lib_raw.as_deref(), &["lib", "lib64"])?;
+        let lib = resolve_paths(
+            &dep_path,
+            dep.lib_raw.as_deref(),
+            &["lib", "lib64"],
+            profile,
+        )?;
         let libs_list = dep
             .libs_raw
             .clone()
@@ -200,11 +206,13 @@ fn resolve_paths(
     base: &Path,
     raw: Option<&[String]>,
     defaults: &[&str],
+    profile: &str,
 ) -> Result<Vec<PathBuf>, String> {
     let mut out = Vec::new();
     if let Some(raw) = raw {
         for r in raw {
-            let p = Path::new(r);
+            let expanded = expand_profile(r, profile);
+            let p = Path::new(&expanded);
             let full = if p.is_absolute() {
                 p.to_path_buf()
             } else {
@@ -227,6 +235,10 @@ fn resolve_paths(
     Ok(out)
 }
 
+fn expand_profile(raw: &str, profile: &str) -> String {
+    raw.replace("{profile}", profile)
+}
+
 fn sync_dep_dir(src: &Path, dst: &Path) -> std::io::Result<()> {
     if dst.exists() {
         fs::remove_dir_all(dst)?;

src/main.rs

@@ -21,6 +21,7 @@ fn main() {
         "build" => cli::build::build(rest),
         "run" => cli::run::run(rest),
         "clean" => cli::clean::clean(rest),
+        "gen" => cli::r#gen::r#gen(rest),
         "--version" => {
             println!("dcr {} ({})", env!("CARGO_PKG_VERSION"), env!("DCR_TARGET"));
             0