chore(changelog): update changelog for v0.7.0

- Introduces `gen` subcommand for HDL template generation
- Adds Jinja2 dependency for template rendering
- Updates project model to support template configurations
- Implements template listing and rendering functionality

.gitea/default_merge_message/MERGE_TEMPLATE.md

@@ -0,0 +1,5 @@
+chore(pr): ${PullRequestTitle} ${PullRequestReference}
+
+${PullRequestDescription}
+
+Merged from ${HeadBranch} into ${BaseBranch}

.gitea/scripts/cleanup_versions.sh

@@ -0,0 +1,45 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# cleanup_dev_versions.sh - Delete old PyPI dev versions from Gitea package registry
+
+# Required environment variables
+USERNAME="${TWINE_USERNAME}"
+TOKEN="${TWINE_PASSWORD}"
+REPO="${GITHUB_REPOSITORY}"             # e.g., maxp/repocat
+API_BASE="${GITHUB_API_URL%/}"         # Strip trailing slash if present
+
+OWNER="${REPO%%/*}"
+PACKAGE_NAME="${REPO##*/}"
+API_URL="${API_BASE}/packages/${OWNER}/pypi/${PACKAGE_NAME}"
+
+# Fetch the list of versions
+response=$(curl -s -u "$USERNAME:$TOKEN" "$API_URL")
+
+# Extract all .dev versions, sort by creation time
+mapfile -t versions_to_delete < <(echo "$response" | jq -r '
+  map(select(.version | test("\\.dev"))) |
+  sort_by(.created_at) |
+  .[0:-1][] |
+  .version')
+
+# Determine latest version to keep
+latest_version=$(echo "$response" | jq -r '
+  map(select(.version | test("\\.dev"))) |
+  sort_by(.created_at) |
+  last.version')
+
+if [[ -z "$latest_version" || ${#versions_to_delete[@]} -eq 0 ]]; then
+  echo "No old .dev versions to delete."
+  exit 0
+fi
+
+echo "Keeping latest .dev version: $latest_version"
+
+# Delete old .dev versions
+for version in "${versions_to_delete[@]}"; do
+  echo "Deleting old .dev version: $version"
+  curl -s -X DELETE -u "$USERNAME:$TOKEN" "$API_URL/$version"
+done
+
+echo "Cleanup complete."

.gitea/scripts/get-release-id.sh

@@ -0,0 +1,21 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# Eingaben
+TAG="$1"
+TOKEN="${ACTIONS_RUNTIME_TOKEN:-<fallback_token>}"
+REPO="${GITHUB_REPOSITORY:-owner/example}"
+API="${GITHUB_API_URL:-https://gitea.example.tld/api/v1}"
+
+OWNER=$(echo "$REPO" | cut -d/ -f1)
+NAME=$(echo "$REPO" | cut -d/ -f2)
+
+RESPONSE=$(curl -sf \
+  -H "Authorization: token $TOKEN" \
+  "$API/repos/$OWNER/$NAME/releases/tags/$TAG")
+
+RELEASE_ID=$(echo "$RESPONSE" | jq -r '.id')
+echo "Release-ID für $TAG ist: $RELEASE_ID"
+
+# Für GitHub Actions als Umgebungsvariable
+echo "GT_RELEASE_ID=$RELEASE_ID" >> "$GITHUB_ENV"

.gitea/scripts/set_poetry_version.sh

@@ -0,0 +1,14 @@
+#!/bin/bash
+
+BASE_VERSION=$(cat VERSION)
+NIGHTLY_SUFFIX=""
+
+if [[ "$1" == "nightly" ]]; then
+  # Beispiel: 20240511.1358 → 11. Mai, 13:58 Uhr
+  NIGHTLY_SUFFIX=".dev$(date +%Y%m%d%H%M)"
+fi
+
+FULL_VERSION="${BASE_VERSION}${NIGHTLY_SUFFIX}"
+
+echo "Using version: $FULL_VERSION"
+poetry version "$FULL_VERSION"

.gitea/scripts/sync_version_from_poetry.sh

@@ -0,0 +1,21 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+# Stelle sicher, dass wir im Projektverzeichnis sind
+ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/../.." && pwd)"
+cd "$ROOT_DIR"
+
+PYPROJECT="pyproject.toml"
+VERSION_FILE="VERSION"
+
+# Extrahiere die Version mit grep + sed (keine externen Abhängigkeiten nötig)
+VERSION=$(grep -E '^version\s*=' "$PYPROJECT" | head -n1 | sed -E 's/.*=\s*"([^"]+)".*/\1/')
+
+if [[ -z "$VERSION" ]]; then
+  echo "❌ Version konnte nicht aus $PYPROJECT gelesen werden."
+  exit 1
+fi
+
+printf "%s" "$VERSION" > "$VERSION_FILE"
+echo "✅ Version synchronisiert: $VERSION → $VERSION_FILE"

.gitea/scripts/upload-asset.sh

@@ -0,0 +1,40 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# Eingabeparameter
+FILE_PATH="$1"                      # z. B. ./dist/build.zip
+CUSTOM_NAME="${2:-}"               # optional: anderer Name unter dem das Asset gespeichert werden soll
+RELEASE_ID="${GT_RELEASE_ID:-}"       # aus Umgebung
+
+# Validierung
+if [[ -z "$RELEASE_ID" ]]; then
+  echo "❌ RELEASE_ID ist nicht gesetzt. Abbruch."
+  exit 1
+fi
+
+if [[ ! -f "$FILE_PATH" ]]; then
+  echo "❌ Datei '$FILE_PATH' existiert nicht. Abbruch."
+  exit 1
+fi
+
+# Default-Konfiguration
+TOKEN="${ACTIONS_RUNTIME_TOKEN:-<fallback_token>}"
+REPO="${GITHUB_REPOSITORY:-owner/example}"
+API="${GITHUB_API_URL:-https://gitea.example.tld/api/v1}"
+
+# Owner/Repo auflösen
+OWNER=$(echo "$REPO" | cut -d/ -f1)
+NAME=$(echo "$REPO" | cut -d/ -f2)
+
+# Dateiname setzen
+FILENAME="${CUSTOM_NAME:-$(basename "$FILE_PATH")}"
+
+echo "🔼 Uploading '$FILE_PATH' as '$FILENAME' to release ID $RELEASE_ID"
+
+# Upload
+curl -sf -X POST \
+  -H "Authorization: token $TOKEN" \
+  -F "attachment=@$FILE_PATH" \
+  "$API/repos/$OWNER/$NAME/releases/$RELEASE_ID/assets?name=$FILENAME"
+
+echo "✅ Upload abgeschlossen: $FILENAME"

.gitea/workflows/build-and-deploy-nightly.yml

@@ -1,30 +1,33 @@
-# .gitea/workflows/publish.yml
+name: Build and Publish nightly package
-
-name: Build and Publish
 
 on:
+  workflow_dispatch:
   push:
-    paths:
+    branches:
-      - "pyproject.toml" # Nur bei Änderungen an dieser Datei
+      - main
-  workflow_dispatch: # Manuelles Anstoßen zulassen
+    paths-ignore:
+      - 'CHANGELOG.md'
 
 jobs:
   build-and-publish:
     runs-on: ubuntu-22.04
 
     steps:
-      - name: ⚙️ Prepare Environment Variables
-        run: |
-          echo "AGENT_TOOLSDIRECTORY=/home/runner/toolcache" >> $GITHUB_ENV
-          mkdir -p /home/runner/toolcache
-
       - name: Checkout Repository
         uses: actions/checkout@v4
 
       - name: 🐍 Setup Python
         uses: actions/setup-python@v5
         with:
-          python-version: "3.10"
+          python-version: "3.12"
+
+      - name: 🔄 Restore cache
+        uses: https://git.0xmax42.io/actions/cache@v1
+        with:
+          key: poetry-v1-${{ runner.os }}-${{ hashFiles('poetry.lock') }}
+          paths: |
+            ~/.cache/pypoetry
+            ~/.cache/pip
 
       - name: Install Poetry
         run: |
@@ -35,6 +38,9 @@ jobs:
         run: |
           poetry install
 
+      - name: Set version from VERSION file (with nightly suffix)
+        run: ./.gitea/scripts/set_poetry_version.sh nightly
+
       - name: Build Package
         working-directory: .
         run: |
@@ -47,3 +53,10 @@ jobs:
           TWINE_PASSWORD: ${{ secrets.TWINE_PASSWORD }}
         run: |
           poetry run twine upload --repository-url ${{ secrets.TWINE_URL }} dist/*
+
+      - name: Cleanup old dev versions
+        run: |
+          .gitea/scripts/cleanup_versions.sh '\.dev'
+        env:
+          TWINE_USERNAME: ${{ secrets.TWINE_USERNAME }}
+          TWINE_PASSWORD: ${{ secrets.TWINE_PASSWORD }}

.gitea/workflows/build-and-deploy-release.yml

@@ -0,0 +1,64 @@
+name: Build and Publish nightly package
+
+on:
+  release:
+    types: [published] 
+
+jobs:
+  build-and-publish:
+    runs-on: ubuntu-22.04
+
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@v4
+        with:
+          ref: ${{ github.event.release.tag_name }}
+
+      - name: 🐍 Setup Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.12"
+
+      - name: 🔄 Restore cache
+        uses: https://git.0xmax42.io/actions/cache@v1
+        with:
+          key: poetry-v1-${{ runner.os }}-${{ hashFiles('poetry.lock') }}
+          paths: |
+            ~/.cache/pypoetry
+            ~/.cache/pip
+
+      - name: Install Poetry
+        run: |
+          pip install poetry
+
+      - name: Install Project Dependencies
+        working-directory: .
+        run: |
+          poetry install
+
+      - name: Build Package
+        working-directory: .
+        run: |
+          poetry build
+
+      - name: Get built wheel filename
+        id: get_whl
+        run: |
+          echo "whl_file=$(basename dist/*.whl)" >> $GITHUB_OUTPUT
+          echo "sdist_file=$(basename dist/*.tar.gz)" >> $GITHUB_OUTPUT
+
+      - name: Publish to Gitea Package Registry
+        working-directory: .
+        env:
+          TWINE_USERNAME: ${{ secrets.TWINE_USERNAME }}
+          TWINE_PASSWORD: ${{ secrets.TWINE_PASSWORD }}
+        run: |
+          poetry run twine upload --repository-url ${{ secrets.TWINE_URL }} dist/*
+
+      - name: Get Release ID from tag
+        run: .gitea/scripts/get-release-id.sh "${{ github.event.release.tag_name }}"
+
+      - name: Upload assets
+        run: | 
+          .gitea/scripts/upload-asset.sh ./dist/${{ steps.get_whl.outputs.whl_file }}
+          .gitea/scripts/upload-asset.sh ./dist/${{ steps.get_whl.outputs.sdist_file }}

.gitea/workflows/release.yml

@@ -0,0 +1,18 @@
+name: Auto Changelog & (Release)
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - name: Release
+        uses: https://git.0xmax42.io/actions/auto-changelog-release-action@v0
+        with:
+          token: ${{ secrets.RELEASE_PUBLISH_TOKEN }}

CHANGELOG.md

@@ -0,0 +1,38 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+## [0.7.0](https://git.0xmax42.io/maxp/hdlbuild/compare/v0.6.1..v0.7.0) - 2025-07-17
+
+### 🚀 Features
+
+- *(version)* Bump version to 0.7.0 - ([8adaa91](https://git.0xmax42.io/maxp/hdlbuild/commit/8adaa916ff4e736e9da707c232d6f57b788e57e8))
+- *(cli)* Add template generation commands - ([af0477f](https://git.0xmax42.io/maxp/hdlbuild/commit/af0477f8e74a9471c3e7d36877069592e41f651c))
+
+## [0.6.1] - 2025-07-16
+
+### 🚀 Features
+
+- *(ci)* Add workflows for nightly builds and releases - ([da387f2](https://git.0xmax42.io/maxp/hdlbuild/commit/da387f2ee602390d616c79bf4057ccf941e21462))
+
+### 🚜 Refactor
+
+- Use typer for CLI argument parsing - ([6ca389d](https://git.0xmax42.io/maxp/hdlbuild/commit/6ca389d5cbbeff53faab9d61376a8c77ed097b6c))
+- Improves project configuration - ([175bf48](https://git.0xmax42.io/maxp/hdlbuild/commit/175bf4882a8f172ee536d726b31136690572be36))
+
+### 📚 Documentation
+
+- *(readme)* Expand README with detailed usage and setup - ([fa7e738](https://git.0xmax42.io/maxp/hdlbuild/commit/fa7e738b7eade5a627218741a6fb4bd1617f7801))
+
+### 🎨 Styling
+
+- *(pyproject)* Simplify include array formatting - ([08679c2](https://git.0xmax42.io/maxp/hdlbuild/commit/08679c2680b49119e0414688a80e8dc2659236b4))
+- Updates VS Code editor color scheme - ([1d7bc19](https://git.0xmax42.io/maxp/hdlbuild/commit/1d7bc1996522ab54970348b5118ad319849a6a1f))
+
+### ⚙️ Miscellaneous Tasks
+
+- *(config)* Add git-cliff configuration file - ([dde2363](https://git.0xmax42.io/maxp/hdlbuild/commit/dde2363ad7dd2fd2d48c6154e3b88c1c4a6867fd))
+- Updates project version to 0.6.0 - ([7b6f9ef](https://git.0xmax42.io/maxp/hdlbuild/commit/7b6f9ef2240864b103903e79c895a76db59c14fa))
+- Remove build-deb.yml workflow file - ([0d26c42](https://git.0xmax42.io/maxp/hdlbuild/commit/0d26c42f8ae419d509aa47d3f7a23bfdd08cf79b))
+
+

VERSION

@@ -0,0 +1 @@
+0.7.0

cliff.toml

@@ -0,0 +1,104 @@
+# CLIFF_VERSION=2.8.0
+# git-cliff ~ default configuration file
+# https://git-cliff.org/docs/configuration
+#
+# Lines starting with "#" are comments.
+# Configuration options are organized into tables and keys.
+# See documentation for more information on available options.
+[remote.gitea]
+owner = "maxp"
+repo = "hdlbuild"
+
+[changelog]
+# postprocessors
+postprocessors = [
+  { pattern = '<GITEA_URL>', replace = "https://git.0xmax42.io" }, # replace gitea url
+]
+
+# template for the changelog header
+header = """
+# Changelog\n
+All notable changes to this project will be documented in this file.\n
+"""
+# template for the changelog body
+# https://keats.github.io/tera/docs/#introduction
+body = """
+{%- macro remote_url() -%}
+  <GITEA_URL>/{{ remote.gitea.owner }}/{{ remote.gitea.repo }}
+{%- endmacro -%}
+
+{% if version %}\
+    {% if previous.version %}\
+        ## [{{ version | trim_start_matches(pat="v") }}]\
+          ({{ self::remote_url() }}/compare/{{ previous.version }}..{{ version }}) - {{ timestamp | date(format="%Y-%m-%d") }}
+    {% else %}\
+        ## [{{ version | trim_start_matches(pat="v") }}] - {{ timestamp | date(format="%Y-%m-%d") }}
+    {% endif %}\
+{% else %}\
+    ## [unreleased]
+{% endif %}\
+{% for group, commits in commits | group_by(attribute="group") %}
+    ### {{ group | striptags | trim | upper_first }}
+    {% for commit in commits %}
+        - {% if commit.scope %}*({{ commit.scope }})* {% endif %}\
+            {% if commit.breaking %}[**breaking**] {% endif %}\
+            {{ commit.message | upper_first }} - \
+            ([{{ commit.id | truncate(length=7, end="") }}]({{ self::remote_url() }}/commit/{{ commit.id }}))\
+    {% endfor %}
+{% endfor %}\n
+"""
+# template for the changelog footer
+footer = """
+
+"""
+# remove the leading and trailing s
+trim = true
+
+# render body even when there are no releases to process
+# render_always = true
+# output file path
+# output = "test.md"
+
+[git]
+# parse the commits based on https://www.conventionalcommits.org
+conventional_commits = true
+# filter out the commits that are not conventional
+filter_unconventional = true
+# process each line of a commit as an individual commit
+split_commits = false
+# regex for preprocessing the commit messages
+commit_preprocessors = [
+  # Replace issue numbers
+  #{ pattern = '\((\w+\s)?#([0-9]+)\)', replace = "([#${2}](<REPO>/issues/${2}))"},
+  # Check spelling of the commit with https://github.com/crate-ci/typos
+  # If the spelling is incorrect, it will be automatically fixed.
+  #{ pattern = '.*', replace_command = 'typos --write-changes -' },
+]
+# regex for parsing and grouping commits
+commit_parsers = [
+  { message = "^feat", group = "<!-- 0 -->🚀 Features" },
+  { message = "^fix", group = "<!-- 1 -->🐛 Bug Fixes" },
+  { message = "^doc", group = "<!-- 3 -->📚 Documentation" },
+  { message = "^perf", group = "<!-- 4 -->⚡ Performance" },
+  { message = "^refactor", group = "<!-- 2 -->🚜 Refactor" },
+  { message = "^style", group = "<!-- 5 -->🎨 Styling" },
+  { message = "^test", group = "<!-- 6 -->🧪 Testing" },
+  { message = "^chore\\(changelog\\)", skip = true },
+  { message = "^chore\\(version\\)", skip = true },
+  { message = "^chore\\(release\\): prepare for", skip = true },
+  { message = "^chore\\(deps.*\\)", skip = true },
+  { message = "^chore\\(pr\\)", skip = true },
+  { message = "^chore\\(pull\\)", skip = true },
+  { message = "^chore|^ci", group = "<!-- 7 -->⚙️ Miscellaneous Tasks" },
+  { body = ".*security", group = "<!-- 8 -->🛡️ Security" },
+  { message = "^revert", group = "<!-- 9 -->◀️ Revert" },
+  { message = ".*", group = "<!-- 10 -->💼 Other" },
+]
+# Regex to select git tags that represent releases.
+tag_pattern = "v[0-9]+\\.[0-9]+\\.[0-9]+"
+# filter out the commits that are not matched by commit parsers
+filter_commits = false
+# sort the tags topologically
+topo_order = false
+# sort the commits inside sections by oldest/newest order
+sort_commits = "newest"

pyproject.toml

@@ -1,14 +1,12 @@
 [tool.poetry]
 name = "hdlbuild"
-version = "0.6.0"
+version = "0.7.0"
 description = "Flexible FPGA Build System"
 authors = ["0xMax42 <Mail@0xMax42.io>"]
 license = "MIT"
 readme = "README.md"
 packages = [{ include = "hdlbuild", from = "src" }]
-include = [
+include = ["src/hdlbuild/templates/*"]
-    "src/hdlbuild/templates/*"
-]
 
 [tool.poetry.scripts]
 hdlbuild = "hdlbuild.cli:main"
@@ -20,6 +18,7 @@ pydantic = "^2.11.3"
 rich = "^14.0.0"
 gitpython = "^3.1.44"
 typer = "^0.16.0"
+jinja2 = "^3.1.6"
 
 [tool.poetry.group.dev.dependencies]
 twine = "^6.1.0"

src/hdlbuild/cli.py

@@ -1,6 +1,7 @@
 import typer
 from importlib.metadata import version, PackageNotFoundError
 
+from hdlbuild.commands.gen import cli as gen_cli
 from hdlbuild.commands.build import cli as build_cli
 from hdlbuild.commands.clean import cli as clean_cli
 from hdlbuild.commands.dep   import cli as dep_cli
@@ -18,12 +19,12 @@ app = typer.Typer(
     help=f"hdlbuild v{get_version()} – Build‑Management for FPGA projects"
 )
 
-# Unter‑Kommandos registrieren (entspricht add_subparsers)
 app.add_typer(build_cli, name="build", help="Build the project")
 app.add_typer(clean_cli, name="clean", help="Clean build artifacts")
 app.add_typer(dep_cli,   name="dep",   help="Resolve dependencies")
 app.add_typer(test_cli,  name="test",  help="Run simulations/testbenches")
 app.add_typer(init_cli,  name="init",  help="Initialize project")
+app.add_typer(gen_cli,   name="gen",   help="Generate HDL files from templates")
 
 def main():
     app()

src/hdlbuild/commands/gen.py

@@ -0,0 +1,53 @@
+from __future__ import annotations
+
+import typer
+
+from hdlbuild.generate.template_generator import TemplateGenerator
+from hdlbuild.utils.console_utils import ConsoleUtils
+from hdlbuild.utils.project_loader import load_project_config
+
+cli = typer.Typer(rich_help_panel="🧬 Template Commands")
+
+@cli.command("list")
+def list_templates() -> None:
+    """
+    List all available template names from *project.yml*.
+
+    ```bash
+    hdlbuild gen list
+    ```
+    """
+    console = ConsoleUtils("hdlbuild")
+    project = load_project_config()
+    TemplateGenerator.list_templates(project, console)
+
+
+@cli.callback(invoke_without_command=True)
+def gen( 
+    ctx: typer.Context,
+    name: str = typer.Option(
+        None,
+        "--name",
+        "-n",
+        help="Name of the template to generate (from project.yml)",
+        show_default=False,
+    ),
+    dry_run: bool = typer.Option(
+        False,
+        "--dry-run",
+        help="Only show the output without writing file",
+    ),
+) -> None:
+    """
+    Render HDL files from Jinja2 templates.
+
+    * `hdlbuild gen` → render all templates  
+    * `hdlbuild gen <name>` → render a specific template  
+    * `hdlbuild gen <name> --dry-run` → only show output without saving
+    """
+    console = ConsoleUtils("hdlbuild")
+    project = load_project_config()
+
+    # Only executed when no subcommand (e.g., "list") is active.
+    if ctx.invoked_subcommand is None:
+        TemplateGenerator.generate(project, name, dry_run, console)

src/hdlbuild/generate/template_generator.py

@@ -0,0 +1,120 @@
+"""
+hdlbuild.generate.template_generator
+====================================
+
+Enthält die Klasse :class:`TemplateGenerator`, die das Auflisten und Rendern
+von in *project.yml* definierten Jinja2-Templates kapselt.
+"""
+
+from __future__ import annotations
+
+import os
+from typing import Optional
+
+from jinja2 import Environment, FileSystemLoader
+
+from hdlbuild.models.templates import TemplateInstance
+from hdlbuild.utils.console_utils import ConsoleUtils
+
+
+class TemplateGenerator:
+    """
+    Hilfsklasse zum Auflisten und Rendern der im Projekt konfigurierten
+    Jinja2-Templates.
+    """
+
+    # --------------------------------------------------------------------- #
+    # Öffentliche API
+    # --------------------------------------------------------------------- #
+
+    @staticmethod
+    def list_templates(project, console: ConsoleUtils) -> None:
+        """
+        Alle in *project.yml* definierten Templates auflisten.
+        """
+        if not project.templates:
+            console.print("[yellow]No templates defined in project.yml")
+            return
+
+        console.print("[bold underline]Available Templates:")
+        for name in project.templates.root.keys():
+            console.print(f"• {name}")
+
+    @classmethod
+    def generate(
+        cls,
+        project,
+        name: Optional[str],
+        dry_run: bool,
+        console: ConsoleUtils,
+    ) -> None:
+        """
+        Templates erzeugen.
+
+        Parameters
+        ----------
+        project
+            Geladenes Projekt-Model.
+        name
+            Name eines einzelnen Templates oder *None*, um alle Templates
+            zu erzeugen.
+        dry_run
+            Wenn *True*, wird das gerenderte Ergebnis nur ausgegeben,
+            jedoch nicht auf die Festplatte geschrieben.
+        console
+            Farbige Konsolen-Ausgaben.
+        """
+        if not project.templates:
+            console.print("[red]No templates defined in project.yml")
+            return
+
+        templates = project.templates.root
+
+        if name:
+            # Ein bestimmtes Template
+            if name not in templates:
+                console.print(f"[red]Template '{name}' not found.")
+                return
+            cls._render_template(name, templates[name], dry_run, console)
+        else:
+            # Alle Templates durchlaufen
+            for tname, template in templates.items():
+                cls._render_template(tname, template, dry_run, console)
+
+    # --------------------------------------------------------------------- #
+    # Interne Helfer
+    # --------------------------------------------------------------------- #
+
+    @staticmethod
+    def _render_template(
+        name: str,
+        template: TemplateInstance,
+        dry_run: bool,
+        console: ConsoleUtils,
+    ) -> None:
+        """
+        Einzelnes Template rendern und wahlweise speichern.
+        """
+        template_path = template.template
+        output_path = template.output
+        variables = template.variables
+
+        env = Environment(
+            loader=FileSystemLoader(os.path.dirname(template_path)),
+            trim_blocks=True,
+            lstrip_blocks=True,
+        )
+        j2 = env.get_template(os.path.basename(template_path))
+        result = j2.render(**variables)
+
+        if dry_run:
+            console.print(f"[green]--- Template: {name} (dry-run) ---")
+            console.print(result)
+            console.print(f"[green]--- End of {name} ---")
+            return
+
+        os.makedirs(os.path.dirname(output_path), exist_ok=True)
+        with open(output_path, "w") as f:
+            f.write(result)
+
+        console.print(f"[cyan]✔ Rendered template '{name}' → {output_path}")

src/hdlbuild/models/project.py

@@ -1,6 +1,8 @@
 from pydantic import BaseModel, Field
 from typing import List, Optional
 
+from hdlbuild.models.templates import ProjectTemplates
+
 class SourceFile(BaseModel):
     path: str
     library: str = "work"   # Default auf 'work'
@@ -43,6 +45,7 @@ class ProjectConfig(BaseModel):
     sources: Sources
     testbenches: Optional[Testbenches] = None
     constraints: Optional[str] = None
+    templates: Optional[ProjectTemplates] = None
     build: Optional[BuildOptions] = None
     dependencies: Optional[List[Dependency]] = Field(default_factory=list)
     tool_options: Optional[ToolOptions] = ToolOptions()

src/hdlbuild/models/templates.py

@@ -0,0 +1,14 @@
+from pydantic import BaseModel, Field, RootModel
+from typing import Dict, Any
+
+class TemplateInstance(BaseModel):
+    template: str                       # Pfad zur Jinja2-Vorlage
+    output: str                         # Zielpfad
+    variables: Dict[str, Any] = Field(default_factory=dict)  # Variablen für Rendering
+
+class ProjectTemplates(RootModel):
+    """
+    Pydantic-RootModel, das die Mapping-Struktur *name → TemplateInstance*
+    kapselt.  In Pydantic v2 ersetzt `RootModel` die frühere `__root__`-Syntax.
+    """
+    root: Dict[str, TemplateInstance]  # key = Name wie „alu“, „control_unit“