Update release.yml

- 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
- Build compiles all `*.c/*.cpp` files in `src/` into a single binary (no incremental build)
- Updated `dcr.toml` examples in documentation

.github/workflows/aur.yml

@@ -0,0 +1,136 @@
+name: AUR Publish
+
+on:
+  workflow_dispatch:
+    inputs:
+      version:
+        description: "Tag version without v prefix (e.g. 0.2.2)"
+        required: true
+  push:
+    tags:
+      - "v*"
+
+permissions:
+  contents: read
+
+jobs:
+  publish-aur:
+    runs-on: ubuntu-latest
+    environment: aur
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Derive version and checksum
+        id: meta
+        shell: bash
+        run: |
+          set -euo pipefail
+          if [[ "${GITHUB_EVENT_NAME}" == "workflow_dispatch" ]]; then
+            PKGVER="${{ inputs.version }}"
+          else
+            PKGVER="${GITHUB_REF_NAME#v}"
+          fi
+          SRC_URL="https://github.com/dexoron/dcr/archive/refs/tags/v${PKGVER}.tar.gz"
+          SHA256="$(curl -fsSL "$SRC_URL" | sha256sum | awk '{print $1}')"
+
+          echo "pkgver=$PKGVER" >> "$GITHUB_OUTPUT"
+          echo "source_url=$SRC_URL" >> "$GITHUB_OUTPUT"
+          echo "sha256=$SHA256" >> "$GITHUB_OUTPUT"
+
+      - name: Render AUR metadata
+        shell: bash
+        run: |
+          set -euo pipefail
+          PKGVER='${{ steps.meta.outputs.pkgver }}'
+          SRC_URL='${{ steps.meta.outputs.source_url }}'
+          SHA256='${{ steps.meta.outputs.sha256 }}'
+
+          cat > packaging/aur/dcr/PKGBUILD <<PKG
+          pkgname=dcr
+          pkgver=${PKGVER}
+          pkgrel=1
+          pkgdesc="Cargo-like utility to manage C/C++ projects"
+          arch=('x86_64' 'aarch64')
+          url="https://github.com/dexoron/dcr"
+          license=('MIT')
+          depends=('gcc-libs')
+          makedepends=('cargo')
+          options=('!lto')
+          optdepends=(
+            'gcc: build C/C++ projects with GCC'
+            'clang: build C/C++ projects with Clang'
+          )
+          source=("\$pkgname-\$pkgver.tar.gz::\$url/archive/refs/tags/v\$pkgver.tar.gz")
+          sha256sums=('${SHA256}')
+
+          build() {
+            cd "\$srcdir/\$pkgname-\$pkgver"
+            export CARGO_PROFILE_RELEASE_LTO=false
+            export RUSTFLAGS="\${RUSTFLAGS:-}"
+            export RUSTFLAGS="\${RUSTFLAGS/-C link-arg=-fuse-ld=lld/}"
+            cargo build --release --locked
+          }
+
+          package() {
+            cd "\$srcdir/\$pkgname-\$pkgver"
+            install -Dm755 "target/release/dcr" "\$pkgdir/usr/bin/dcr"
+            install -Dm644 LICENSE "\$pkgdir/usr/share/licenses/\$pkgname/LICENSE"
+          }
+          PKG
+
+          cat > packaging/aur/dcr/.SRCINFO <<SRC
+          pkgbase = dcr
+          	pkgdesc = Cargo-like utility to manage C/C++ projects
+          	pkgver = ${PKGVER}
+          	pkgrel = 1
+          	url = https://github.com/dexoron/dcr
+          	arch = x86_64
+          	arch = aarch64
+          	license = MIT
+          	makedepends = cargo
+          	depends = gcc-libs
+          	optdepends = gcc: build C/C++ projects with GCC
+          	optdepends = clang: build C/C++ projects with Clang
+            options = !lto
+          	source = dcr-${PKGVER}.tar.gz::${SRC_URL}
+          	sha256sums = ${SHA256}
+
+          pkgname = dcr
+          SRC
+
+      - name: Push to AUR
+        env:
+          AUR_SSH_PRIVATE_KEY: ${{ secrets.AUR_SSH_PRIVATE_KEY }}
+          AUR_PACKAGE: dcr
+        shell: bash
+        run: |
+          set -euo pipefail
+
+          if [[ -z "${AUR_SSH_PRIVATE_KEY:-}" ]]; then
+            echo "AUR_SSH_PRIVATE_KEY secret is missing"
+            exit 1
+          fi
+
+          install -d -m 700 ~/.ssh
+          printf '%s\n' "$AUR_SSH_PRIVATE_KEY" > ~/.ssh/aur
+          chmod 600 ~/.ssh/aur
+          ssh-keyscan aur.archlinux.org >> ~/.ssh/known_hosts
+
+          export GIT_SSH_COMMAND='ssh -i ~/.ssh/aur -o IdentitiesOnly=yes'
+          git clone "ssh://aur@aur.archlinux.org/${AUR_PACKAGE}.git" aur-repo
+          cp packaging/aur/dcr/PKGBUILD aur-repo/PKGBUILD
+          cp packaging/aur/dcr/.SRCINFO aur-repo/.SRCINFO
+
+          cd aur-repo
+          git config user.name "github-actions[bot]"
+          git config user.email "github-actions[bot]@users.noreply.github.com"
+
+          if git diff --quiet; then
+            echo "No AUR changes"
+            exit 0
+          fi
+
+          git add PKGBUILD .SRCINFO
+          git commit -m "dcr ${{ steps.meta.outputs.pkgver }}"
+          git push

.github/workflows/release.yml

@@ -9,6 +9,34 @@ permissions:
   contents: write
 
 jobs:
+  notes:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Prepare Release Notes
+        shell: bash
+        run: |
+          set -euo pipefail
+          tag="${GITHUB_REF_NAME#v}"
+          notes_file=".github/release-notes.md"
+          if grep -q "^## \\[${tag}\\]" CHANGELOG.md; then
+            awk -v ver="$tag" '
+              $0 ~ "^## \\[" ver "\\]" {found=1; next}
+              found && $0 ~ "^## \\[" {exit}
+              found {print}
+            ' CHANGELOG.md | sed -e '${/^$/d;}' > "$notes_file"
+          else
+            echo "No CHANGELOG section for $tag." > "$notes_file"
+            git log -1 --pretty=format:"%s%n%n%b" >> "$notes_file"
+          fi
+
+      - name: Upload Notes Artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: release-notes
+          path: .github/release-notes.md
+
   build:
     strategy:
       fail-fast: false
@@ -17,10 +45,10 @@ jobs:
           - os: ubuntu-latest
             target: x86_64-unknown-linux-gnu
             asset_name: dcr-x86_64-unknown-linux-gnu
-          - os: macos-13
+          - os: macos-15-intel
             target: x86_64-apple-darwin
             asset_name: dcr-x86_64-apple-darwin
-          - os: macos-14
+          - os: macos-15
             target: aarch64-apple-darwin
             asset_name: dcr-aarch64-apple-darwin
           - os: windows-latest
@@ -28,9 +56,14 @@ jobs:
             asset_name: dcr-x86_64-pc-windows-msvc.exe
 
     runs-on: ${{ matrix.os }}
-
+    needs: notes
     steps:
       - uses: actions/checkout@v4
+      - name: Download Release Notes
+        uses: actions/download-artifact@v4
+        with:
+          name: release-notes
+          path: .github
 
       - name: Setup Rust
         uses: dtolnay/rust-toolchain@stable
@@ -56,3 +89,4 @@ jobs:
         uses: softprops/action-gh-release@v2
         with:
           files: ${{ matrix.asset_name }}
+          body_path: .github/release-notes.md

CHANGELOG.md

@@ -1,5 +1,23 @@
 # Changelog
 
+## [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
+- Build compiles all `*.c/*.cpp` files in `src/` into a single binary (no incremental build)
+- 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
@@ -8,40 +26,40 @@ Changed:
 - Translated installer script messages in `install.sh` and `install.ps1` to English
 
 ## [0.2.0] - 2026-02-17
-Изменено:
+Changed:
-- Проект переведен с Python на Rust
+- Project migrated from Python to Rust
-- CLI и команды (`new`, `init`, `build`, `run`, `clean`, `--help`, `--version`, `--update`) перенесены на Rust
+- CLI and commands (`new`, `init`, `build`, `run`, `clean`, `--help`, `--version`, `--update`) ported to Rust
-- Обновлен флаг `--update` - добавлена поддержка GNU\Linux, Windows, MacOS
+- Updated `--update` flag: added support for GNU/Linux, Windows, macOS
-- Обновлены `README.md`, `CONTRIBUTING.md`, `install.sh` под Rust-реализацию
+- Updated `README.md`, `CONTRIBUTING.md`, and `install.sh` for the Rust implementation
-- Добавлен `install.ps1` для Windows
+- Added `install.ps1` for Windows
-- Обновлен `install.sh` для GNU/Linux и MacOS
+- Updated `install.sh` for GNU/Linux and macOS
 
-Добавлено:
+Added:
-- Добавлен `install.ps1` для Windows
+- Added `install.ps1` for Windows
-- Поддержка GNU\Linux, Windows, MacOS(x86_64/arm)
+- Support for GNU/Linux, Windows, macOS (x86_64/arm)
 
-ВАЖНО:
+Important:
-- Код перенесен с помощью нейронных сетей, в будущих версиях будет баг-фикс и изменение логики
+- Code was ported with neural networks; future versions will include bug fixes and logic changes
 
 ## [0.1.2] - 2026-02-12
-Добавлено:
+Added:
-- Команда обновления
+- Update command
-- Скрипт установки `install.sh` и инструкции по установке в README
+- `install.sh` install script and README instructions
-- Флаг `--version` для вывода версии
+- `--version` flag
 
-Изменено:
+Changed:
-- Улучшен консольный вывод команд, добавлены цвета и обновлена справка `--help`
+- Improved CLI output, added colors, and updated `--help`
-- Обновлен запуск проекта и обработка сборки в `run.py`/`build.py`
+- Updated project run/build handling in `run.py`/`build.py`
 
 ## [0.1.1] - 2026-02-11
-Изменено:
+Changed:
-- Обновлена справка `--help`
+- Updated `--help`
-- `main.py` теперь корректно запускается при прямом выполнении
+- `main.py` now runs correctly when executed directly
 
 ## [0.1.0] - 2026-02-11
-Первый публичный релиз.
+First public release.
 
-Добавлено:
+Added:
-- Базовые команды `new`, `init`, `build`, `run`, `clean`
+- Base commands `new`, `init`, `build`, `run`, `clean`
-- Профили сборки `debug` и `release`
+- Build profiles `debug` and `release`
-- Шаблоны `dcr.toml` и `src/main.c`
+- `dcr.toml` and `src/main.c` templates

Cargo.lock

@@ -62,11 +62,12 @@ checksum = "613afe47fcd5fac7ccf1db93babcb082c5994d996f20b8b159f2ad1658eb5724"
 
 [[package]]
 name = "dcr"
-version = "0.2.1"
+version = "0.2.3"
 dependencies = [
  "reqwest",
  "self-replace",
  "serde",
+ "toml",
 ]
 
 [[package]]
@@ -878,6 +879,15 @@ dependencies = [
  "zmij",
 ]
 
+[[package]]
+name = "serde_spanned"
+version = "1.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f8bbf91e5a4d6315eee45e704372590b30e260ee83af6639d64557f51b067776"
+dependencies = [
+ "serde_core",
+]
+
 [[package]]
 name = "serde_urlencoded"
 version = "0.7.1"
@@ -1043,6 +1053,45 @@ dependencies = [
  "tokio",
 ]
 
+[[package]]
+name = "toml"
+version = "1.0.3+spec-1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c7614eaf19ad818347db24addfa201729cf2a9b6fdfd9eb0ab870fcacc606c0c"
+dependencies = [
+ "indexmap",
+ "serde_core",
+ "serde_spanned",
+ "toml_datetime",
+ "toml_parser",
+ "toml_writer",
+ "winnow",
+]
+
+[[package]]
+name = "toml_datetime"
+version = "1.0.0+spec-1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "32c2555c699578a4f59f0cc68e5116c8d7cabbd45e1409b989d4be085b53f13e"
+dependencies = [
+ "serde_core",
+]
+
+[[package]]
+name = "toml_parser"
+version = "1.0.9+spec-1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "702d4415e08923e7e1ef96cd5727c0dfed80b4d2fa25db9647fe5eb6f7c5a4c4"
+dependencies = [
+ "winnow",
+]
+
+[[package]]
+name = "toml_writer"
+version = "1.0.6+spec-1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ab16f14aed21ee8bfd8ec22513f7287cd4a91aa92e44edfe2c17ddd004e92607"
+
 [[package]]
 name = "tower"
 version = "0.5.3"
@@ -1466,6 +1515,12 @@ version = "0.53.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d6bbff5f0aada427a1e5a6da5f1f98158182f26556f345ac9e04d36d0ebed650"
 
+[[package]]
+name = "winnow"
+version = "0.7.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5a5364e9d77fcdeeaa6062ced926ee3381faa2ee02d3eb83a5c27a8825540829"
+
 [[package]]
 name = "wit-bindgen"
 version = "0.51.0"

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "dcr"
-version = "0.2.1"
+version = "0.2.3"
 edition = "2024"
 build = "build.rs"
 
@@ -8,3 +8,4 @@ build = "build.rs"
 reqwest = { version = "0.12", default-features = false, features = ["blocking", "json", "rustls-tls"] }
 serde = { version = "1", features = ["derive"] }
 self-replace = "1"
+toml = "1.0.3"

README.md

@@ -15,7 +15,7 @@ The current implementation is written in Rust.
 - Run the compiled binary
 - Clean build artifacts
 - Generate a minimal C project template
-- Update the binary via `dcr --update` (GitHub Releases)
+- Update the binary via `dcr --update` (GitHub Releases, not for pacman/AUR installs)
 
 ## Supported Platforms
 - Linux: `x86_64-unknown-linux-gnu`
@@ -25,6 +25,13 @@ The current implementation is written in Rust.
 
 ## Installation
 
+### Package Manager
+
+**Arch Linux**
+```sh
+yay -S dcr # or paru and other AUR package managers
+```
+
 ### From Source
 
 ```sh
@@ -57,6 +64,14 @@ Release assets:
 - `dcr-aarch64-apple-darwin`
 - `dcr-x86_64-pc-windows-msvc.exe`
 
+## Update
+
+- If DCR was installed from GitHub release assets, `install.sh`, `install.ps1`, or built manually:
+  - use `dcr --update`
+- If DCR is installed via `pacman/AUR`:
+  - update with your package manager: `paru/yay -Syu dcr` or `sudo pacman -Syu dcr`
+  - `dcr --update` detects package-managed installs and asks you to update via package manager
+
 ## Quick Start
 
 Create a new project:
@@ -92,15 +107,15 @@ Builds the project. If no profile is specified, `--debug` is used.
 Builds the project and runs the binary. If no profile is specified, `--debug` is used.
 
 Run manually:
-`./target/<profile>/main`
+`./target/<profile>/<name>`
 
 ### `dcr clean`
 Removes the `target` directory in the project root.
 
 ## Build Profiles
 Two profiles are supported:
-- `--debug` (default) - flags: `-O0 -g -Wall -Wextra -fno-omit-frame-pointer -DDEBUG`
+- `--debug` (default) - flags: `-O0 -g -Wall -Wextra -fno-omit-frame-pointer -DDEBUG`(Clang)
-- `--release` - flags: `-O3 -DNDEBUG -march=native`
+- `--release` - flags: `-O3 -DNDEBUG -march=native`(Clang)
 
 ## Configuration
 The main project file is `dcr.toml`.
@@ -111,7 +126,10 @@ Example `dcr.toml`:
 [package]
 name = "hello"
 version = "0.1.0"
+
+[build]
 language = "c"
+standard = "c11"
 compiler = "clang"
 
 [dependencies]
@@ -119,7 +137,7 @@ compiler = "clang"
 
 ## Requirements
 - Rust toolchain (`rustc`, `cargo`) - for building DCR from source
-- C compiler (`clang`, `gcc`, or others)
+- C compiler (`clang`, `gcc`, or 'cl'(msvc))
 
 ## Releases
 Releases are built automatically via GitHub Actions (`.github/workflows/release.yml`) when a tag matching `v*` is pushed.

docs/README_ru.md

@@ -15,7 +15,7 @@ DCR — это утилита для управления проектами н
 - Запуск собранного бинарника
 - Очистка результатов сборки
 - Генерация минимального шаблона C-проекта
-- Обновление бинарника через `dcr --update` (GitHub Releases)
+- Обновление бинарника через `dcr --update` (GitHub Releases, не для pacman-установок)
 
 ## Поддерживаемые платформы
 - Linux: `x86_64-unknown-linux-gnu`
@@ -25,6 +25,13 @@ DCR — это утилита для управления проектами н
 
 ## Установка
 
+### Пакетный менеджер
+
+**ArchLinux**
+```sh
+yay -S dcr # или paru и остальные менеджеры пакетов AUR 
+```
+
 ### Из исходников
 
 ```sh
@@ -57,6 +64,14 @@ irm https://dcr.dexoron.su/install.ps1 | iex
 - `dcr-aarch64-apple-darwin`
 - `dcr-x86_64-pc-windows-msvc.exe`
 
+## Обновление
+
+- Если DCR установлен из GitHub Releases, через `install.sh`, `install.ps1` или собран вручную:
+  - используйте `dcr --update`
+- Если DCR установлен через `pacman/AUR`:
+  - обновляйте через пакетный менеджер: `paru/yay -Syu dcr` или `sudo pacman -Syu dcr`
+  - `dcr --update` определяет пакетную установку и подсказывает обновляться через пакетный менеджер
+
 ## Быстрый старт
 
 Создать новый проект:
@@ -92,15 +107,15 @@ hello/
 Собирает проект и запускает бинарник. Если профиль не указан, используется `--debug`.
 
 Запуск вручную:
-`./target/<profile>/main`
+`./target/<profile>/<name>`
 
 ### `dcr clean`
 Удаляет папку `target` в корне проекта.
 
 ## Профили сборки
 Поддерживаются два профиля:
-- `--debug` (по умолчанию) — флаги: `-O0 -g -Wall -Wextra -fno-omit-frame-pointer -DDEBUG`
+- `--debug` (по умолчанию) — флаги: `-O0 -g -Wall -Wextra -fno-omit-frame-pointer -DDEBUG`(Clang)
-- `--release` — флаги: `-O3 -DNDEBUG -march=native`
+- `--release` — флаги: `-O3 -DNDEBUG -march=native`(Clang)
 
 ## Конфигурация
 Основной файл проекта — `dcr.toml`.
@@ -111,7 +126,10 @@ hello/
 [package]
 name = "hello"
 version = "0.1.0"
+
+[build]
 language = "c"
+standard = "c11"
 compiler = "clang"
 
 [dependencies]
@@ -119,7 +137,7 @@ compiler = "clang"
 
 ## Требования
 - Rust toolchain (`rustc`, `cargo`) - Для ручной сборки DCR
-- C-компилятор (`clang`, `gcc` или другие)
+- C-компилятор (`clang`, `gcc` или 'cl'(msvc))
 
 ## Релизы
 Релизы собираются автоматически через GitHub Actions (`.github/workflows/release.yml`) при пуше тега формата `v*`.

packaging/aur/README.md

@@ -0,0 +1,21 @@
+# AUR publishing
+
+This repository includes an automated AUR publish workflow:
+- package files: `packaging/aur/dcr/PKGBUILD`, `packaging/aur/dcr/.SRCINFO`
+- workflow: `.github/workflows/aur.yml`
+
+## One-time setup
+
+1. Create the `dcr` package on AUR and initialize its git repository.
+2. Create an SSH key pair for CI.
+3. Add the public key to your AUR account.
+4. Add the private key to GitHub Actions secret `AUR_SSH_PRIVATE_KEY`.
+
+## Release flow
+
+1. Bump project version in `Cargo.toml`.
+2. Push tag `v<version>` (example: `v0.2.2`).
+3. GitHub Actions will:
+- compute source tarball SHA256
+- render `PKGBUILD` and `.SRCINFO`
+- push updates to `ssh://aur@aur.archlinux.org/dcr.git`

packaging/aur/dcr/.SRCINFO

@@ -0,0 +1,17 @@
+pkgbase = dcr
+	pkgdesc = Cargo-like utility to manage C/C++ projects
+	pkgver = 0.2.1
+	pkgrel = 1
+	url = https://github.com/dexoron/dcr
+	arch = x86_64
+	arch = aarch64
+	license = MIT
+	makedepends = cargo
+	depends = gcc-libs
+	optdepends = gcc: build C/C++ projects with GCC
+	optdepends = clang: build C/C++ projects with Clang
+	options = !lto
+	source = dcr-0.2.1.tar.gz::https://github.com/dexoron/dcr/archive/refs/tags/v0.2.1.tar.gz
+	sha256sums = 30e334fa98cd51073c0fa84c80a982584b00156b57084311ad53419441ce6235
+
+pkgname = dcr

packaging/aur/dcr/PKGBUILD

@@ -0,0 +1,30 @@
+pkgname=dcr
+pkgver=0.2.1
+pkgrel=3
+pkgdesc="Cargo-like utility to manage C/C++ projects"
+arch=('x86_64' 'aarch64')
+url="https://github.com/dexoron/dcr"
+license=('MIT')
+depends=('gcc-libs')
+makedepends=('cargo')
+options=('!lto')
+optdepends=(
+  'gcc: build C/C++ projects with GCC'
+  'clang: build C/C++ projects with Clang'
+)
+source=("$pkgname-$pkgver.tar.gz::$url/archive/refs/tags/v$pkgver.tar.gz")
+sha256sums=('30e334fa98cd51073c0fa84c80a982584b00156b57084311ad53419441ce6235')
+
+build() {
+  cd "$srcdir/$pkgname-$pkgver"
+  export CARGO_PROFILE_RELEASE_LTO=false
+  export RUSTFLAGS="${RUSTFLAGS:-}"
+  export RUSTFLAGS="${RUSTFLAGS/-C link-arg=-fuse-ld=lld/}"
+  cargo build --release --locked
+}
+
+package() {
+  cd "$srcdir/$pkgname-$pkgver"
+  install -Dm755 "target/release/dcr" "$pkgdir/usr/bin/dcr"
+  install -Dm644 LICENSE "$pkgdir/usr/share/licenses/$pkgname/LICENSE"
+}

src/cli/build.rs

@@ -1,81 +1,112 @@
-use crate::config::{PROFILE, PROJECT_COMPILER, flags};
+use crate::config::{PROFILE, flags};
+use crate::core::builder::{BuildContext, build as build_project};
+use crate::core::config::Config;
 use crate::utils::fs::check_dir;
 use crate::utils::log::{error, warn};
 use crate::utils::text::{BOLD_GREEN, colored};
 use std::fs;
-use std::process::Command;
 use std::time::Instant;
 
 pub fn build(args: &[String]) -> i32 {
-    let mut active_profile = PROFILE.to_string();
-    let project_name = std::env::current_dir()
-        .ok()
-        .and_then(|p| p.file_name().map(|v| v.to_string_lossy().to_string()))
-        .unwrap_or_else(|| "project".to_string());
-
     let items = check_dir(None).unwrap_or_default();
     if !items.contains(&"dcr.toml".to_string()) {
         error("dcr.toml file not found");
         return 1;
     }
 
-    if let Some(first_arg) = args.first() {
+    let config = match Config::open("./dcr.toml") {
-        if first_arg.starts_with("--") {
+        Ok(cfg) => cfg,
-            let candidate = first_arg.trim_start_matches("--");
+        Err(_) => {
-            if flags(candidate).is_some() {
+            error("dcr.toml file not found");
-                active_profile = candidate.to_string();
-            } else {
-                warn("Unknown build flag");
             return 1;
         }
-        } else {
+    };
-            warn("Unknown argument");
+    let active_profile = match parse_profile(args) {
-            return 1;
+        Ok(profile) => profile,
-        }
+        Err(code) => return code,
-    }
+    };
+    let project_name = get_config_str(&config, "package.name");
+    let project_compiler = get_config_str(&config, "build.compiler");
+    let build_language = get_config_str(&config, "build.language");
+    let build_standard = get_config_str(&config, "build.standard");
 
     println!(
         "    Building project `{}`\n    Profile: {}\n    Compiler: {}\n",
         colored(&project_name, BOLD_GREEN),
         colored(&active_profile, BOLD_GREEN),
-        colored(PROJECT_COMPILER, BOLD_GREEN)
+        colored(&project_compiler, BOLD_GREEN)
     );
 
-    if !items.contains(&"target".to_string()) {
+    ensure_target_dirs(&items, &active_profile);
-        let _ = fs::create_dir("./target");
-    }
-    let target_items = check_dir(Some("target")).unwrap_or_default();
-    if !target_items.contains(&active_profile) {
-        let _ = fs::create_dir(format!("./target/{active_profile}"));
-    }
 
-    let src_items = check_dir(Some("src")).unwrap_or_default();
+    let ctx = BuildContext {
-    if src_items.contains(&"main.c".to_string()) {
+        profile: &active_profile,
-        let compile_flags = flags(&active_profile).unwrap_or(&[]);
+        project_name: &project_name,
-        let start_time = Instant::now();
+        compiler: &project_compiler,
-        let mut cmd = Command::new(PROJECT_COMPILER);
+        language: &build_language,
-        cmd.arg("./src/main.c");
+        standard: &build_standard,
-        for flag in compile_flags {
+    };
-            cmd.arg(flag);
+    match run_build(&ctx) {
-        }
+        Ok(times) => {
-        cmd.arg("-o").arg(format!("./target/{active_profile}/main"));
-
-        match cmd.status() {
-            Ok(status) if status.success() => {
-                let times = ((start_time.elapsed().as_secs_f64() * 100.0).trunc()) / 100.0;
             println!(
                 "    {} Build completed successfully in {} seconds",
                 colored("✔", BOLD_GREEN),
                 colored(&times.to_string(), BOLD_GREEN)
             );
-                return 0;
+            0
         }
-            _ => {
+        Err(msg) => {
-                error("Build failed");
+            error(&msg);
-                return 1;
+            1
         }
     }
 }
 
-    0
+fn parse_profile(args: &[String]) -> Result<String, i32> {
+    if let Some(first_arg) = args.first() {
+        if first_arg.starts_with("--") {
+            let candidate = first_arg.trim_start_matches("--");
+            if flags(candidate).is_some() {
+                return Ok(candidate.to_string());
+            }
+            warn("Unknown build flag");
+            return Err(1);
+        }
+        warn("Unknown argument");
+        return Err(1);
+    }
+    Ok(PROFILE.to_string())
+}
+
+fn get_config_str(config: &Config, key: &str) -> String {
+    config
+        .get(key)
+        .and_then(|v| v.as_str())
+        .unwrap_or("")
+        .to_string()
+}
+
+fn ensure_target_dirs(items: &[String], profile: &str) {
+    if !items.contains(&"target".to_string()) {
+        let _ = fs::create_dir("./target");
+    }
+    let target_items = check_dir(Some("target")).unwrap_or_default();
+    if !target_items.contains(&profile.to_string()) {
+        let _ = fs::create_dir(format!("./target/{profile}"));
+    }
+}
+
+fn run_build(ctx: &BuildContext) -> Result<f64, String> {
+    let start_time = Instant::now();
+    match build_project(ctx) {
+        Ok(times) => {
+            let times = if times == 0.0 {
+                ((start_time.elapsed().as_secs_f64() * 100.0).trunc()) / 100.0
+            } else {
+                times
+            };
+            Ok(times)
+        }
+        Err(_) => Err("Build failed".to_string()),
+    }
 }

src/cli/flag_update.rs

@@ -3,6 +3,7 @@ use reqwest::blocking::Client;
 use serde::Deserialize;
 use std::fs;
 use std::path::{Path, PathBuf};
+use std::process::Command;
 use std::time::{SystemTime, UNIX_EPOCH};
 
 const LATEST_RELEASE_URL: &str = "https://api.github.com/repos/dexoron/dcr/releases/latest";
@@ -25,6 +26,22 @@ pub fn flag_update(args: &[String]) -> i32 {
         return 1;
     }
 
+    let current_exe = match std::env::current_exe() {
+        Ok(path) => path,
+        Err(_) => {
+            error("Failed to resolve current binary path");
+            return 1;
+        }
+    };
+
+    if let Some(package_name) = pacman_owned_package(&current_exe) {
+        warn("This dcr binary is managed by pacman/AUR");
+        println!(
+            "Update via package manager: yay/paru -Syu {package_name} or sudo pacman -Syu {package_name}"
+        );
+        return 0;
+    }
+
     let current_version = env!("CARGO_PKG_VERSION");
     let target = env!("DCR_TARGET");
     let client = match Client::builder().user_agent("dcr-updater").build() {
@@ -67,13 +84,6 @@ pub fn flag_update(args: &[String]) -> i32 {
         }
     };
 
-    let current_exe = match std::env::current_exe() {
-        Ok(path) => path,
-        Err(_) => {
-            error("Failed to resolve current binary path");
-            return 1;
-        }
-    };
     let temp_path = temp_binary_path(&current_exe);
 
     if fs::write(&temp_path, &bytes).is_err() {
@@ -157,3 +167,23 @@ fn set_executable_permissions(path: &Path) {
         }
     }
 }
+
+#[cfg(target_os = "linux")]
+fn pacman_owned_package(path: &Path) -> Option<String> {
+    let output = Command::new("pacman").arg("-Qoq").arg(path).output().ok()?;
+    if !output.status.success() {
+        return None;
+    }
+
+    let package_name = String::from_utf8_lossy(&output.stdout).trim().to_string();
+    if package_name.is_empty() {
+        return None;
+    }
+
+    Some(package_name)
+}
+
+#[cfg(not(target_os = "linux"))]
+fn pacman_owned_package(_path: &Path) -> Option<String> {
+    None
+}

src/cli/init.rs

@@ -1,9 +1,11 @@
-use crate::config::{FILE_MAIN_C, file_dcr_toml};
+use crate::config::FILE_MAIN_C;
+use crate::core::config::Config;
 use crate::utils::fs::check_dir;
 use crate::utils::log::{error, warn};
 use crate::utils::text::{BOLD_CYAN, BOLD_GREEN, colored, printc};
 use std::fs;
 use std::io::Write;
+use toml::Value;
 
 pub fn init(args: &[String]) -> i32 {
     if !args.is_empty() {
@@ -27,15 +29,15 @@ pub fn init(args: &[String]) -> i32 {
         .unwrap_or_else(|_| ".".to_string());
     println!("Initializing the project in {cwd}");
 
-    let mut dcr_toml = match fs::File::create("./dcr.toml") {
+    let mut config = match Config::new("./dcr.toml") {
-        Ok(file) => file,
+        Ok(cfg) => cfg,
         Err(_) => {
             error("Failed to create dcr.toml");
             return 1;
         }
     };
-    if dcr_toml
+    if config
-        .write_all(file_dcr_toml(&project_name).as_bytes())
+        .edit("package.name", Value::String(project_name.clone()))
         .is_err()
     {
         error("Failed to write dcr.toml");
@@ -43,7 +45,7 @@ pub fn init(args: &[String]) -> i32 {
     }
     println!(
         "    {} Created file {}",
-        colored("✔", BOLD_CYAN),
+        colored("✔", BOLD_GREEN),
         colored("dcr.toml", BOLD_CYAN)
     );
 
@@ -73,6 +75,6 @@ pub fn init(args: &[String]) -> i32 {
         colored(project_name.as_str(), BOLD_GREEN)
     );
     printc("Next step:", BOLD_GREEN);
-    printc("    cd {}\n    dcr run", project_name.as_str());
+    printc("    dcr run", BOLD_CYAN);
     0
 }

src/cli/new.rs

@@ -1,9 +1,11 @@
-use crate::config::{FILE_MAIN_C, file_dcr_toml};
+use crate::config::FILE_MAIN_C;
+use crate::core::config::Config;
 use crate::utils::fs::check_dir;
 use crate::utils::log::{error, warn};
 use crate::utils::text::{BOLD_CYAN, BOLD_GREEN, colored, printc};
 use std::fs;
 use std::io::Write;
+use toml::Value;
 
 pub fn new(args: &[String]) -> i32 {
     let items = check_dir(None).unwrap_or_default();
@@ -42,20 +44,20 @@ pub fn new(args: &[String]) -> i32 {
     }
     println!(
         "    {} Directory created {}",
-        colored("✔", BOLD_CYAN),
+        colored("✔", BOLD_GREEN),
         project_name
     );
 
     let toml_path = format!("./{project_name}/dcr.toml");
-    let mut dcr_toml = match fs::File::create(&toml_path) {
+    let mut config = match Config::new(&toml_path) {
-        Ok(file) => file,
+        Ok(cfg) => cfg,
         Err(_) => {
             error("Failed to create dcr.toml");
             return 1;
         }
     };
-    if dcr_toml
+    if config
-        .write_all(file_dcr_toml(project_name).as_bytes())
+        .edit("package.name", Value::String(project_name.to_string()))
         .is_err()
     {
         error("Failed to write dcr.toml");
@@ -63,7 +65,7 @@ pub fn new(args: &[String]) -> i32 {
     }
     println!(
         "    {} Created file {}",
-        colored("✔", BOLD_CYAN),
+        colored("✔", BOLD_GREEN),
         colored("dcr.toml", BOLD_CYAN)
     );
 
@@ -94,6 +96,6 @@ pub fn new(args: &[String]) -> i32 {
         colored(project_name, BOLD_GREEN)
     );
     printc("Next step:", BOLD_GREEN);
-    printc("    cd {}\n    dcr run", project_name);
+    printc(&format!("    cd {}\n    dcr run", project_name), BOLD_CYAN);
     0
 }

src/cli/run.rs

@@ -1,5 +1,6 @@
 use crate::cli::build::build;
 use crate::config::{PROFILE, flags};
+use crate::core::config::Config;
 use crate::utils::fs::check_dir;
 use crate::utils::log::{error, warn};
 use crate::utils::text::{BOLD_GREEN, colored};
@@ -14,6 +15,18 @@ pub fn run(args: &[String]) -> i32 {
         return 1;
     }
 
+    let config = match Config::open("./dcr.toml") {
+        Ok(cfg) => cfg,
+        Err(_) => {
+            error("dcr.toml file not found");
+            return 1;
+        }
+    };
+    let project_name: &str = config
+        .get("package.name")
+        .and_then(|v| v.as_str())
+        .unwrap_or("");
+
     if let Some(first_arg) = args.first() {
         if first_arg.starts_with("--") {
             let candidate = first_arg.trim_start_matches("--");
@@ -32,11 +45,11 @@ pub fn run(args: &[String]) -> i32 {
     let build_status = build(args);
     if build_status == 0 {
         println!(
-            "\n    {} target/{active_profile}/main",
+            "\n    {} target/{active_profile}/{project_name}",
             colored("Running", BOLD_GREEN)
         );
         println!("--------------------------------");
-        return Command::new(format!("./target/{active_profile}/main"))
+        return Command::new(format!("./target/{active_profile}/{project_name}"))
             .status()
             .map(|status| status.code().unwrap_or(1))
             .unwrap_or(1);
@@ -47,7 +60,7 @@ pub fn run(args: &[String]) -> i32 {
         .contains(&active_profile)
     {
         warn("Launch of the latest release");
-        return Command::new(format!("./target/{active_profile}/main"))
+        return Command::new(format!("./target/{active_profile}/{project_name}"))
             .status()
             .map(|status| status.code().unwrap_or(1))
             .unwrap_or(1);

src/config.rs

@@ -1,24 +1,4 @@
-pub const PROJECT_VERSION: &str = "0.1.0";
-pub const PROJECT_LANGUAGE: &str = "c";
-pub const PROJECT_COMPILER: &str = "clang";
 pub const PROFILE: &str = "debug";
-
-pub fn file_dcr_toml(project_name: &str) -> String {
-    format!(
-        r#"[package]
-name = "{project_name}"
-version = "{project_version}"
-language = "{project_language}"
-compiler = "{project_compiler}"
-
-[dependencies]
-"#,
-        project_version = PROJECT_VERSION,
-        project_language = PROJECT_LANGUAGE,
-        project_compiler = PROJECT_COMPILER
-    )
-}
-
 pub const FILE_MAIN_C: &str = r#"#include <stdio.h>
 
 int main(void) {

src/core/builder/clang.rs

@@ -0,0 +1,81 @@
+use crate::core::builder::BuildContext;
+use crate::platform;
+use std::fs;
+use std::process::Command;
+use std::time::Instant;
+
+pub fn build(ctx: &BuildContext) -> Result<f64, String> {
+    let compiler = if ctx.compiler.is_empty() {
+        "cc"
+    } else {
+        ctx.compiler
+    };
+    let start_time = Instant::now();
+    let mut cmd = Command::new(compiler);
+    let sources = collect_sources(ctx.language)?;
+    for source in &sources {
+        cmd.arg(source);
+    }
+    if !ctx.standard.is_empty() {
+        cmd.arg(format!("-std={}", ctx.standard));
+    }
+    for flag in default_flags(ctx.profile) {
+        cmd.arg(flag);
+    }
+    cmd.arg("-o")
+        .arg(platform::bin_path(ctx.profile, ctx.project_name));
+
+    match cmd.status() {
+        Ok(status) if status.success() => {
+            let elapsed = ((start_time.elapsed().as_secs_f64() * 100.0).trunc()) / 100.0;
+            Ok(elapsed)
+        }
+        Ok(_) => Err("Build failed".to_string()),
+        Err(err) => Err(format!("Build failed: {err}")),
+    }
+}
+
+fn collect_sources(language: &str) -> Result<Vec<String>, String> {
+    let lang = language.to_lowercase();
+    let mut sources = Vec::new();
+    let entries = fs::read_dir("./src").map_err(|err| format!("src dir error: {err}"))?;
+    for entry in entries {
+        let entry = entry.map_err(|err| format!("src dir error: {err}"))?;
+        let path = entry.path();
+        if !path.is_file() {
+            continue;
+        }
+        let ext = path
+            .extension()
+            .and_then(|v| v.to_str())
+            .unwrap_or("")
+            .to_lowercase();
+        let file = path.to_string_lossy().to_string();
+        let allowed = (lang == "c" && ext == "c")
+            || ((lang == "c++" || lang == "cpp" || lang == "cxx")
+                && (ext == "cpp" || ext == "cxx" || ext == "cc"));
+        if allowed {
+            sources.push(file);
+        }
+    }
+    sources.sort();
+    if sources.is_empty() {
+        return Err("No source files found in ./src".to_string());
+    }
+    Ok(sources)
+}
+
+fn default_flags(profile: &str) -> &'static [&'static str] {
+    match profile {
+        "release" => &["-O3", "-DNDEBUG", "-march=native"],
+        "debug" => &[
+            "-O0",
+            "-g",
+            "-Wall",
+            "-Wextra",
+            "-fno-omit-frame-pointer",
+            "-DDEBUG",
+        ],
+        _ => &[],
+    }
+}

src/core/builder/gcc.rs

@@ -0,0 +1,81 @@
+use crate::core::builder::BuildContext;
+use crate::platform;
+use std::fs;
+use std::process::Command;
+use std::time::Instant;
+
+pub fn build(ctx: &BuildContext) -> Result<f64, String> {
+    let compiler = if ctx.compiler.is_empty() {
+        "cc"
+    } else {
+        ctx.compiler
+    };
+    let start_time = Instant::now();
+    let mut cmd = Command::new(compiler);
+    let sources = collect_sources(ctx.language)?;
+    for source in &sources {
+        cmd.arg(source);
+    }
+    if !ctx.standard.is_empty() {
+        cmd.arg(format!("-std={}", ctx.standard));
+    }
+    for flag in default_flags(ctx.profile) {
+        cmd.arg(flag);
+    }
+    cmd.arg("-o")
+        .arg(platform::bin_path(ctx.profile, ctx.project_name));
+
+    match cmd.status() {
+        Ok(status) if status.success() => {
+            let elapsed = ((start_time.elapsed().as_secs_f64() * 100.0).trunc()) / 100.0;
+            Ok(elapsed)
+        }
+        Ok(_) => Err("Build failed".to_string()),
+        Err(err) => Err(format!("Build failed: {err}")),
+    }
+}
+
+fn collect_sources(language: &str) -> Result<Vec<String>, String> {
+    let lang = language.to_lowercase();
+    let mut sources = Vec::new();
+    let entries = fs::read_dir("./src").map_err(|err| format!("src dir error: {err}"))?;
+    for entry in entries {
+        let entry = entry.map_err(|err| format!("src dir error: {err}"))?;
+        let path = entry.path();
+        if !path.is_file() {
+            continue;
+        }
+        let ext = path
+            .extension()
+            .and_then(|v| v.to_str())
+            .unwrap_or("")
+            .to_lowercase();
+        let file = path.to_string_lossy().to_string();
+        let allowed = (lang == "c" && ext == "c")
+            || ((lang == "c++" || lang == "cpp" || lang == "cxx")
+                && (ext == "cpp" || ext == "cxx" || ext == "cc"));
+        if allowed {
+            sources.push(file);
+        }
+    }
+    sources.sort();
+    if sources.is_empty() {
+        return Err("No source files found in ./src".to_string());
+    }
+    Ok(sources)
+}
+
+fn default_flags(profile: &str) -> &'static [&'static str] {
+    match profile {
+        "release" => &["-O3", "-DNDEBUG", "-march=native"],
+        "debug" => &[
+            "-O0",
+            "-g",
+            "-Wall",
+            "-Wextra",
+            "-fno-omit-frame-pointer",
+            "-DDEBUG",
+        ],
+        _ => &[],
+    }
+}

src/core/builder/mod.rs

@@ -0,0 +1,28 @@
+pub mod clang;
+pub mod gcc;
+pub mod msvc;
+
+pub struct BuildContext<'a> {
+    pub profile: &'a str,
+    pub project_name: &'a str,
+    pub compiler: &'a str,
+    pub language: &'a str,
+    pub standard: &'a str,
+}
+
+pub fn build(ctx: &BuildContext) -> Result<f64, String> {
+    let compiler = ctx.compiler.to_lowercase();
+    if compiler.contains("clang-cl") {
+        return msvc::build(ctx);
+    }
+    if compiler.contains("gcc") || compiler.contains("g++") {
+        return gcc::build(ctx);
+    }
+    if compiler.contains("clang") || compiler.contains("clang++") {
+        return clang::build(ctx);
+    }
+    if compiler == "cl" || compiler.contains("msvc") {
+        return msvc::build(ctx);
+    }
+    clang::build(ctx)
+}

src/core/builder/msvc.rs

@@ -0,0 +1,116 @@
+use crate::core::builder::BuildContext;
+use crate::platform;
+use std::fs;
+use std::process::Command;
+use std::time::Instant;
+
+pub fn build(ctx: &BuildContext) -> Result<f64, String> {
+    let compiler = if ctx.compiler.is_empty() {
+        "cl"
+    } else {
+        ctx.compiler
+    };
+    let start_time = Instant::now();
+    let mut cmd = Command::new(compiler);
+    let sources = collect_sources(ctx.language)?;
+
+    cmd.arg("/nologo");
+    match ctx.language.to_lowercase().as_str() {
+        "c" => {
+            cmd.arg("/TC");
+        }
+        "c++" | "cpp" | "cxx" => {
+            cmd.arg("/TP");
+        }
+        _ => {
+            return Err("Unsupported language".to_string());
+        }
+    }
+
+    if !ctx.standard.is_empty() {
+        let std_flag = msvc_standard_flag(ctx.language, ctx.standard)?;
+        cmd.arg(std_flag);
+    }
+
+    for flag in default_flags(ctx.profile) {
+        cmd.arg(flag);
+    }
+
+    for source in &sources {
+        cmd.arg(source);
+    }
+    cmd.arg(format!(
+        "/Fe:{}",
+        platform::bin_path(ctx.profile, ctx.project_name)
+    ));
+
+    match cmd.status() {
+        Ok(status) if status.success() => {
+            let elapsed = ((start_time.elapsed().as_secs_f64() * 100.0).trunc()) / 100.0;
+            Ok(elapsed)
+        }
+        Ok(_) => Err("Build failed".to_string()),
+        Err(err) => Err(format!("Build failed: {err}")),
+    }
+}
+
+fn collect_sources(language: &str) -> Result<Vec<String>, String> {
+    let lang = language.to_lowercase();
+    let mut sources = Vec::new();
+    let entries = fs::read_dir("./src").map_err(|err| format!("src dir error: {err}"))?;
+    for entry in entries {
+        let entry = entry.map_err(|err| format!("src dir error: {err}"))?;
+        let path = entry.path();
+        if !path.is_file() {
+            continue;
+        }
+        let ext = path
+            .extension()
+            .and_then(|v| v.to_str())
+            .unwrap_or("")
+            .to_lowercase();
+        let file = path.to_string_lossy().to_string();
+        let allowed = (lang == "c" && ext == "c")
+            || ((lang == "c++" || lang == "cpp" || lang == "cxx")
+                && (ext == "cpp" || ext == "cxx" || ext == "cc"));
+        if allowed {
+            sources.push(file);
+        }
+    }
+    sources.sort();
+    if sources.is_empty() {
+        return Err("No source files found in ./src".to_string());
+    }
+    Ok(sources)
+}
+
+fn msvc_standard_flag(language: &str, standard: &str) -> Result<String, String> {
+    let lang = language.to_lowercase();
+    let std = standard.to_lowercase();
+    if lang == "c" {
+        return match std.as_str() {
+            "c11" => Ok("/std:c11".to_string()),
+            "c17" => Ok("/std:c17".to_string()),
+            _ => Err("Unsupported C standard for MSVC".to_string()),
+        };
+    }
+    if lang == "c++" || lang == "cpp" || lang == "cxx" {
+        return match std.as_str() {
+            "c++11" => Ok("/std:c++11".to_string()),
+            "c++14" => Ok("/std:c++14".to_string()),
+            "c++17" => Ok("/std:c++17".to_string()),
+            "c++20" => Ok("/std:c++20".to_string()),
+            "c++23" => Ok("/std:c++latest".to_string()),
+            _ => Err("Unsupported C++ standard for MSVC".to_string()),
+        };
+    }
+    Err("Unsupported language".to_string())
+}
+
+fn default_flags(profile: &str) -> &'static [&'static str] {
+    match profile {
+        "release" => &["/O2", "/DNDEBUG"],
+        "debug" => &["/Od", "/Zi", "/W4", "/DDEBUG", "/Oy-"],
+        _ => &[],
+    }
+}

src/core/config.rs

@@ -0,0 +1,262 @@
+use std::fs;
+use std::path::{Path, PathBuf};
+use toml::Value;
+use toml::map::Map;
+
+const DEFAULT_VERSION: &str = "0.1.0";
+const DEFAULT_LANGUAGE: &str = "c";
+const DEFAULT_STANDARD: &str = "c11";
+const DEFAULT_COMPILER: &str = "clang";
+
+#[derive(Debug)]
+pub enum ConfigError {
+    Io(std::io::Error),
+    TomlDe(toml::de::Error),
+    TomlSer(toml::ser::Error),
+    Invalid(String),
+}
+
+impl std::fmt::Display for ConfigError {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        match self {
+            ConfigError::Io(err) => write!(f, "I/O error: {err}"),
+            ConfigError::TomlDe(err) => write!(f, "TOML parse error: {err}"),
+            ConfigError::TomlSer(err) => write!(f, "TOML serialize error: {err}"),
+            ConfigError::Invalid(msg) => write!(f, "Invalid config: {msg}"),
+        }
+    }
+}
+
+impl std::error::Error for ConfigError {}
+
+impl From<std::io::Error> for ConfigError {
+    fn from(err: std::io::Error) -> Self {
+        ConfigError::Io(err)
+    }
+}
+
+impl From<toml::de::Error> for ConfigError {
+    fn from(err: toml::de::Error) -> Self {
+        ConfigError::TomlDe(err)
+    }
+}
+
+impl From<toml::ser::Error> for ConfigError {
+    fn from(err: toml::ser::Error) -> Self {
+        ConfigError::TomlSer(err)
+    }
+}
+
+pub struct Config {
+    path: PathBuf,
+    data: Value,
+}
+
+impl Config {
+    pub fn new(path: &str) -> Result<Self, ConfigError> {
+        let path = PathBuf::from(path);
+        let data = if path.exists() {
+            read_toml(&path)?
+        } else {
+            let default_value = default_toml()?;
+            write_toml(&path, &default_value)?;
+            default_value
+        };
+        let cfg = Self { path, data };
+        cfg.validate()?;
+        Ok(cfg)
+    }
+
+    pub fn open(path: &str) -> Result<Self, ConfigError> {
+        let path = PathBuf::from(path);
+        if !path.exists() {
+            return Err(ConfigError::Invalid("dcr.toml not found".into()));
+        }
+        let data = read_toml(&path)?;
+        let cfg = Self { path, data };
+        cfg.validate()?;
+        Ok(cfg)
+    }
+
+    pub fn get(&self, key: &str) -> Option<&Value> {
+        let parts: Vec<&str> = key.split('.').collect();
+        get_path(&self.data, &parts)
+    }
+
+    #[allow(dead_code)]
+    pub fn add(&mut self, key: &str, value: Value) -> Result<(), ConfigError> {
+        self.set(key, value)
+    }
+
+    pub fn edit(&mut self, key: &str, value: Value) -> Result<(), ConfigError> {
+        self.set(key, value)
+    }
+    #[allow(dead_code)]
+    pub fn check(&self) -> bool {
+        self.validate().is_ok()
+    }
+
+    pub fn validate(&self) -> Result<(), ConfigError> {
+        let package = self
+            .get("package")
+            .and_then(|v| v.as_table())
+            .ok_or_else(|| ConfigError::Invalid("missing [package]".into()))?;
+
+        for key in ["name", "version"] {
+            let value = package.get(key).and_then(|v| v.as_str()).unwrap_or("");
+            if value.trim().is_empty() {
+                return Err(ConfigError::Invalid(format!("package.{key} is empty")));
+            }
+        }
+
+        let build = self
+            .get("build")
+            .and_then(|v| v.as_table())
+            .ok_or_else(|| ConfigError::Invalid("missing [build]".into()))?;
+
+        for key in ["language", "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")));
+            }
+        }
+        Ok(())
+    }
+
+    pub fn save(&self) -> Result<(), ConfigError> {
+        write_toml(&self.path, &self.data)
+    }
+
+    fn set(&mut self, key: &str, value: Value) -> Result<(), ConfigError> {
+        let parts: Vec<&str> = key.split('.').collect();
+        set_path(&mut self.data, &parts, value)?;
+        self.save()?;
+        Ok(())
+    }
+}
+
+fn read_toml(path: &Path) -> Result<Value, ConfigError> {
+    let content = fs::read_to_string(path)?;
+    Ok(toml::from_str(&content)?)
+}
+
+fn write_toml(path: &Path, value: &Value) -> Result<(), ConfigError> {
+    let content = format_toml(value)?;
+    fs::write(path, content)?;
+    Ok(())
+}
+
+fn default_toml() -> Result<Value, ConfigError> {
+    let name = std::env::current_dir()
+        .ok()
+        .and_then(|p| p.file_name().map(|v| v.to_string_lossy().to_string()))
+        .unwrap_or_else(|| "project".to_string());
+
+    let mut package = Map::new();
+    package.insert("name".to_string(), Value::String(name));
+    package.insert(
+        "version".to_string(),
+        Value::String(DEFAULT_VERSION.to_string()),
+    );
+    let mut build = Map::new();
+    build.insert(
+        "language".to_string(),
+        Value::String(DEFAULT_LANGUAGE.to_string()),
+    );
+    build.insert(
+        "standard".to_string(),
+        Value::String(DEFAULT_STANDARD.to_string()),
+    );
+    build.insert(
+        "compiler".to_string(),
+        Value::String(DEFAULT_COMPILER.to_string()),
+    );
+
+    let mut root = Map::new();
+    root.insert("package".to_string(), Value::Table(package));
+    root.insert("build".to_string(), Value::Table(build));
+    root.insert("dependencies".to_string(), Value::Table(Map::new()));
+
+    Ok(Value::Table(root))
+}
+
+fn format_toml(value: &Value) -> Result<String, ConfigError> {
+    let root = value
+        .as_table()
+        .ok_or_else(|| ConfigError::Invalid("root is not a table".into()))?;
+
+    let package = root
+        .get("package")
+        .and_then(|v| v.as_table())
+        .ok_or_else(|| ConfigError::Invalid("missing [package]".into()))?;
+    let build = root
+        .get("build")
+        .and_then(|v| v.as_table())
+        .ok_or_else(|| ConfigError::Invalid("missing [build]".into()))?;
+    let deps = root
+        .get("dependencies")
+        .and_then(|v| v.as_table())
+        .ok_or_else(|| ConfigError::Invalid("missing [dependencies]".into()))?;
+
+    let name = package.get("name").and_then(|v| v.as_str()).unwrap_or("");
+    let version = package
+        .get("version")
+        .and_then(|v| v.as_str())
+        .unwrap_or("");
+
+    let language = build.get("language").and_then(|v| v.as_str()).unwrap_or("");
+    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("");
+
+    let mut out = String::new();
+    out.push_str("[package]\n");
+    out.push_str(&format!("name = \"{name}\"\n"));
+    out.push_str(&format!("version = \"{version}\"\n\n"));
+
+    out.push_str("[build]\n");
+    out.push_str(&format!("language = \"{language}\"\n"));
+    out.push_str(&format!("standard = \"{standard}\"\n"));
+    out.push_str(&format!("compiler = \"{compiler}\"\n\n"));
+
+    out.push_str("[dependencies]\n");
+    if !deps.is_empty() {
+        let mut keys: Vec<&String> = deps.keys().collect();
+        keys.sort();
+        for key in keys {
+            let val = deps.get(key).and_then(|v| v.as_str()).unwrap_or("");
+            out.push_str(&format!("{key} = \"{val}\"\n"));
+        }
+    }
+    Ok(out)
+}
+
+fn get_path<'a>(value: &'a Value, path: &[&str]) -> Option<&'a Value> {
+    let mut current = value;
+    for key in path {
+        current = current.as_table()?.get(*key)?;
+    }
+    Some(current)
+}
+
+fn set_path(value: &mut Value, path: &[&str], new_value: Value) -> Result<(), ConfigError> {
+    let mut current = value
+        .as_table_mut()
+        .ok_or_else(|| ConfigError::Invalid("root is not a table".into()))?;
+
+    for key in &path[..path.len().saturating_sub(1)] {
+        if !current.contains_key(*key) {
+            current.insert((*key).to_string(), Value::Table(Map::new()));
+        }
+        current = current
+            .get_mut(*key)
+            .and_then(|v| v.as_table_mut())
+            .ok_or_else(|| ConfigError::Invalid(format!("'{key}' is not a table")))?;
+    }
+
+    if let Some(last) = path.last() {
+        current.insert((*last).to_string(), new_value);
+        Ok(())
+    } else {
+        Err(ConfigError::Invalid("empty key".into()))
+    }
+}

src/core/mod.rs

@@ -0,0 +1,2 @@
+pub mod builder;
+pub mod config;

src/main.rs

@@ -1,6 +1,8 @@
 use crate::utils::log::error;
 mod cli;
 mod config;
+mod core;
+mod platform;
 mod utils;
 
 fn main() {

src/platform/linux.rs

@@ -0,0 +1,3 @@
+pub fn bin_path(profile: &str, name: &str) -> String {
+    format!("./target/{profile}/{name}")
+}

src/platform/macos.rs

@@ -0,0 +1,3 @@
+pub fn bin_path(profile: &str, name: &str) -> String {
+    format!("./target/{profile}/{name}")
+}

src/platform/mod.rs

@@ -0,0 +1,25 @@
+#[cfg(target_os = "linux")]
+pub mod linux;
+#[cfg(target_os = "macos")]
+pub mod macos;
+#[cfg(target_os = "windows")]
+pub mod windows;
+
+pub fn bin_path(profile: &str, name: &str) -> String {
+    #[cfg(target_os = "linux")]
+    {
+        linux::bin_path(profile, name)
+    }
+    #[cfg(target_os = "macos")]
+    {
+        return macos::bin_path(profile, name);
+    }
+    #[cfg(target_os = "windows")]
+    {
+        return windows::bin_path(profile, name);
+    }
+    #[cfg(not(any(target_os = "linux", target_os = "macos", target_os = "windows")))]
+    {
+        format!("./target/{profile}/{name}")
+    }
+}

src/platform/windows.rs

@@ -0,0 +1,3 @@
+pub fn bin_path(profile: &str, name: &str) -> String {
+    format!("./target/{profile}/{name}.exe")
+}