docs: describe Vitest test setup

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

.dockerignore

@@ -1,6 +1,6 @@
 # Git- und Projekt-Metadaten werden nicht in den Docker-Build-Kontext kopiert
 .git
-.github
+.gitea
 .husky
 .claude
 

.gitea/ISSUE_TEMPLATE/bug.yaml

@@ -1,6 +1,7 @@
 name: 🐛 Bug Report
-description: Report a bug or unexpected behavior
+about: Report a bug or unexpected behavior
 title: '🐛 [BUG]: '
+ref: main
 body:
   - type: textarea
     id: information

.gitea/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,2 @@
+# Require one of the structured issue templates below.
+blank_issues_enabled: false

.gitea/ISSUE_TEMPLATE/feature.yaml

@@ -1,6 +1,7 @@
 name: 💡 Enhancement
-description: Suggest a new feature or improvement
+about: Suggest a new feature or improvement
 title: '💡 [ENHANCEMENT]: '
+ref: main
 body:
   - type: textarea
     id: description

.gitea/ISSUE_TEMPLATE/improvement.yaml

@@ -1,6 +1,7 @@
 name: ⚙️ Improvement
-description: Suggest an improvement to existing functionality, code quality, or performance
+about: Suggest an improvement to existing functionality, code quality, or performance
 title: '⚙️ [Improvement]: '
+ref: main
 body:
   - type: textarea
     id: context

.gitea/actions/publish/action.yml

@@ -0,0 +1,133 @@
+name: Publish portfolio
+description: Build the image and create the matching Gitea release
+
+inputs:
+  image-tag:
+    description: Docker image tag
+    required: true
+  prerelease:
+    description: Whether the Gitea release is a pre-release
+    required: true
+  registry-username:
+    description: Registry username
+    required: true
+  registry-password:
+    description: Registry password or token
+    required: true
+  gitea-token:
+    description: Token for Gitea releases
+    required: true
+
+runs:
+  using: composite
+  steps:
+    - name: Use Node.js v24.15.0
+      uses: actions/setup-node@v4
+      with:
+        node-version: '24.15.0'
+
+    - name: Set build version
+      shell: bash
+      run: npm run version:set
+
+    - name: Read version from package.json
+      id: version
+      shell: bash
+      env:
+        PRERELEASE: ${{ inputs.prerelease }}
+      run: |
+        version=$(node -p 'require("./package.json").version')
+        release_tag="v${version//+/-}"
+        if [ "$PRERELEASE" = true ]; then
+          release_tag="${release_tag}-dev"
+        fi
+        echo "value=$version" >> "$GITHUB_OUTPUT"
+        echo "release_tag=$release_tag" >> "$GITHUB_OUTPUT"
+        echo "revision=$(git rev-parse HEAD)" >> "$GITHUB_OUTPUT"
+
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v3
+
+    - name: Log in to registry
+      uses: docker/login-action@v3
+      with:
+        registry: docker.lechner-systems.at
+        username: ${{ inputs.registry-username }}
+        password: ${{ inputs.registry-password }}
+
+    - name: Build and push image
+      uses: docker/build-push-action@v6
+      with:
+        context: .
+        push: true
+        provenance: false
+        build-args: |
+          APP_VERSION=${{ steps.version.outputs.value }}
+          VCS_REF=${{ steps.version.outputs.revision }}
+        tags: docker.lechner-systems.at/lechnersystems/portfolio:${{ inputs.image-tag }}
+
+    - name: Create Gitea release
+      shell: bash
+      env:
+        GITEA_TOKEN: ${{ inputs.gitea-token }}
+        RELEASE_TAG: ${{ steps.version.outputs.release_tag }}
+        PRERELEASE: ${{ inputs.prerelease }}
+      run: |
+        commit_sha="$(git rev-parse HEAD)"
+        api_url="${{ gitea.server_url }}/api/v1/repos/${{ gitea.repository }}/releases"
+        # ponytail: 50 recent releases cover normal reruns; paginate if old releases are rebuilt.
+        releases="$(curl --fail-with-body --silent --show-error \
+            --header "Authorization: token ${GITEA_TOKEN}" \
+            "${api_url}?limit=50")"
+        previous_tag="$(printf '%s' "$releases" | jq -r \
+            --arg tag "$RELEASE_TAG" \
+            --argjson prerelease "$PRERELEASE" \
+            '[.[] | select(.draft == false and .prerelease == $prerelease and .tag_name != $tag)][0].tag_name // empty')"
+
+        if [ -n "$previous_tag" ]; then
+            commit_messages="$(git log --reverse --format='- %s' "${previous_tag}..${commit_sha}")"
+            full_changelog="${{ gitea.server_url }}/${{ gitea.repository }}/compare/${previous_tag}...${RELEASE_TAG}"
+        else
+            commit_messages="$(git log --reverse --format='- %s' "$commit_sha")"
+            full_changelog=""
+        fi
+
+        if [ -z "$commit_messages" ]; then
+            commit_messages='- No commits since the previous release'
+        fi
+
+        {
+            echo '## Changes'
+            echo
+            printf '%s\n' "$commit_messages"
+            echo
+            if [ -n "$full_changelog" ]; then
+                echo "**Full Changelog**: ${full_changelog}"
+            fi
+        } > release-notes.md
+
+        jq --null-input \
+            --arg tag "$RELEASE_TAG" \
+            --arg target "$commit_sha" \
+            --argjson prerelease "$PRERELEASE" \
+            --rawfile body release-notes.md \
+            '{tag_name: $tag, target_commitish: $target, name: $tag, body: $body, prerelease: $prerelease}' \
+            > release.json
+
+        release_id="$(printf '%s' "$releases" | jq -r \
+            --arg tag "$RELEASE_TAG" \
+            '.[] | select(.tag_name == $tag) | .id')"
+        if [ -n "$release_id" ]; then
+            method=PATCH
+            release_url="${api_url}/${release_id}"
+        else
+            method=POST
+            release_url="$api_url"
+        fi
+
+        curl --fail-with-body --silent --show-error \
+            --request "$method" \
+            --header "Authorization: token ${GITEA_TOKEN}" \
+            --header 'Content-Type: application/json' \
+            --data-binary @release.json \
+            "$release_url"

.gitea/workflows/CD Development.yml

@@ -0,0 +1,65 @@
+name: CD Development
+
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: '0 23 * * *'
+
+jobs:
+  changes:
+    runs-on: ubuntu-latest
+    permissions:
+      code: read
+    outputs:
+      changed: ${{ steps.changes.outputs.changed }}
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Check changes since previous development release
+        id: changes
+        env:
+          GITEA_TOKEN: ${{ secrets.GITEA_TOKEN }}
+          API_URL: ${{ gitea.server_url }}/api/v1/repos/${{ gitea.repository }}/actions/workflows/CD%20Development.yml/runs
+        run: |
+          runs="$(curl --fail-with-body --silent --show-error \
+            --header "Authorization: token ${GITEA_TOKEN}" \
+            "${API_URL}?branch=main&limit=50")"
+          previous_sha="$(printf '%s' "$runs" | jq -r \
+            --argjson current_run "$GITHUB_RUN_ID" \
+            '[.workflow_runs[] | select(.id != $current_run and .status == "success" and (.event == "schedule" or .event == "workflow_dispatch"))][0].head_sha // empty')"
+          if [ -z "$previous_sha" ]; then
+            echo 'changed=true' >> "$GITHUB_OUTPUT"
+          else
+            git cat-file -e "${previous_sha}^{commit}"
+            if git diff --quiet "$previous_sha" HEAD; then
+              echo 'changed=false' >> "$GITHUB_OUTPUT"
+              echo 'No changes since the previous successful development release.'
+            else
+              echo 'changed=true' >> "$GITHUB_OUTPUT"
+            fi
+          fi
+
+  publish:
+    needs: changes
+    if: needs.changes.outputs.changed == 'true'
+    runs-on: ubuntu-latest
+    permissions:
+      code: read
+      releases: write
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Publish development image and pre-release
+        uses: ./.gitea/actions/publish
+        with:
+          image-tag: dev
+          prerelease: 'true'
+          registry-username: ${{ secrets.DOCKER_REGISTRY_USERNAME }}
+          registry-password: ${{ secrets.DOCKER_REGISTRY_PASSWORD }}
+          gitea-token: ${{ secrets.GITEA_TOKEN }}

.gitea/workflows/CD Production.yml

@@ -0,0 +1,25 @@
+name: CD Production
+
+on:
+  workflow_dispatch:
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    permissions:
+      code: read
+      releases: write
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Publish latest image and stable release
+        uses: ./.gitea/actions/publish
+        with:
+          image-tag: latest
+          prerelease: 'false'
+          registry-username: ${{ secrets.DOCKER_REGISTRY_USERNAME }}
+          registry-password: ${{ secrets.DOCKER_REGISTRY_PASSWORD }}
+          gitea-token: ${{ secrets.GITEA_TOKEN }}

.gitea/workflows/CI.yml

@@ -0,0 +1,63 @@
+name: CI
+
+on:
+  workflow_dispatch:
+  push:
+    branches:
+      - main
+  pull_request:
+    types: [opened, synchronize, reopened]
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    permissions:
+      code: read
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: '24.15.0'
+          cache: npm
+      - run: npm ci
+      - run: npm run lint
+
+  formatting:
+    runs-on: ubuntu-latest
+    permissions:
+      code: read
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: '24.15.0'
+          cache: npm
+      - run: npm ci
+      - run: npm run format:check
+
+  metadata:
+    runs-on: ubuntu-latest
+    permissions:
+      code: read
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: '24.15.0'
+          cache: npm
+      - run: npm ci
+      - run: npm run version:check
+      - run: npm run text:check
+
+  tests:
+    runs-on: ubuntu-latest
+    permissions:
+      code: read
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: '24.15.0'
+          cache: npm
+      - run: npm ci
+      - run: npm run test

.github/FUNDING.yml

@@ -1,15 +0,0 @@
-# These are supported funding model platforms
-
-github: # Replace with up to 4 GitHub Sponsors-enabled usernames e.g., [user1, user2]
-patreon: # Replace with a single patreon username
-open_collective: # Replace with a single Open Collective username
-ko_fi: fraujulian
-tidelift: # Replace with a single Tidelift platform-name/package-name e.g., npm/babel
-community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
-liberapay: # Replace with a single Liberapay username
-issuehunt: # Replace with a single IssueHunt username
-lfx_crowdfunding: # Replace with a single LFX Crowdfunding project-name e.g., cloud-foundry
-polar: # Replace with a single Polar username
-buy_me_a_coffee: # Replace with a single Buy Me a Coffee username
-thanks_dev: # Replace with a single thanks dev username
-custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']

.github/ISSUE_TEMPLATE/config.yml

@@ -1 +0,0 @@
-blank_issues_enabled: false

.github/dependabot.yml

@@ -1,11 +0,0 @@
-# To get started with Dependabot version updates, you'll need to specify which
-# package ecosystems to update and where the package manifests are located.
-# Please see the documentation for all configuration options:
-# https://docs.github.com/code-security/dependabot/dependabot-version-updates/configuration-options-for-the-dependabot.yml-file
-
-version: 2
-updates:
-  - package-ecosystem: 'npm'
-    directory: '/'
-    schedule:
-      interval: 'daily'

.github/workflows/BuildDev.yml

@@ -1,61 +0,0 @@
-name: Build Docker Image - Dev
-
-on:
-  workflow_dispatch:
-  push:
-    branches:
-      - main
-
-env:
-  REGISTRY: docker.lechner-systems.at
-  IMAGE_NAME: lechnersystems/portfolio
-
-jobs:
-  docker:
-    runs-on: ubuntu-latest
-    permissions:
-      contents: read
-
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@v4
-
-      - name: Use Node.js v24.14.0
-        uses: actions/setup-node@v4
-        with:
-          node-version: '24.14.0'
-
-      - name: Set build version
-        run: npm run version:set
-
-      - name: Read version from package.json
-        id: version
-        run: |
-          version=$(node -p 'require("./package.json").version')
-          docker_tag=$version
-          revision=${GITHUB_RUN_ATTEMPT}
-          echo "value=$version" >> "$GITHUB_OUTPUT"
-          echo "docker_tag=$docker_tag" >> "$GITHUB_OUTPUT"
-          echo "revision=$revision" >> "$GITHUB_OUTPUT"
-
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
-
-      - name: Log in to registry
-        uses: docker/login-action@v3
-        with:
-          registry: ${{ env.REGISTRY }}
-          username: ${{ secrets.DOCKER_REGISTRY_USERNAME }}
-          password: ${{ secrets.DOCKER_REGISTRY_PASSWORD }}
-
-      - name: Build and push dev image
-        uses: docker/build-push-action@v6
-        with:
-          context: .
-          push: true
-          provenance: false
-          build-args: |
-            APP_VERSION=${{ steps.version.outputs.value }}
-            VCS_REF=${{ steps.version.outputs.revision }}
-          tags: |
-            ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:dev

.github/workflows/BuildLatest.yml

@@ -1,95 +0,0 @@
-name: Build Docker Image - Latest
-
-on:
-  workflow_dispatch:
-
-env:
-  REGISTRY: docker.lechner-systems.at
-  IMAGE_NAME: lechnersystems/portfolio
-
-jobs:
-  docker:
-    runs-on: ubuntu-latest
-    permissions:
-      contents: write
-
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@v4
-        with:
-          fetch-depth: 0
-
-      - name: Use Node.js v24.14.0
-        uses: actions/setup-node@v4
-        with:
-          node-version: '24.14.0'
-
-      - name: Set build version
-        run: npm run version:set
-
-      - name: Read version from package.json
-        id: version
-        run: |
-          version=$(node -p 'require("./package.json").version')
-          docker_tag=${version//+/-}
-          revision=${GITHUB_RUN_ATTEMPT}
-          echo "value=$version" >> "$GITHUB_OUTPUT"
-          echo "docker_tag=$docker_tag" >> "$GITHUB_OUTPUT"
-          echo "revision=$revision" >> "$GITHUB_OUTPUT"
-
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
-
-      - name: Log in to registry
-        uses: docker/login-action@v3
-        with:
-          registry: ${{ env.REGISTRY }}
-          username: ${{ secrets.DOCKER_REGISTRY_USERNAME }}
-          password: ${{ secrets.DOCKER_REGISTRY_PASSWORD }}
-
-      - name: Build and push latest image
-        uses: docker/build-push-action@v6
-        with:
-          context: .
-          push: true
-          provenance: false
-          build-args: |
-            APP_VERSION=${{ steps.version.outputs.value }}
-            VCS_REF=${{ steps.version.outputs.revision }}
-          tags: |
-            ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:latest
-
-      - name: Create GitHub release
-        env:
-          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          RELEASE_TAG: v${{ steps.version.outputs.docker_tag }}
-        run: |
-          previous_tag="$(gh api repos/${{ github.repository }}/releases --paginate --jq '.[] | select(.draft == false) | .tag_name' | grep -Fxv "$RELEASE_TAG" | head -n 1 || true)"
-
-          if [ -n "$previous_tag" ]; then
-              commit_messages="$(git log --reverse --format='- %s' "${previous_tag}..${GITHUB_SHA}")"
-              full_changelog="https://github.com/${{ github.repository }}/compare/${previous_tag}...${RELEASE_TAG}"
-          else
-              commit_messages="$(git log --reverse --format='- %s' "${GITHUB_SHA}")"
-              full_changelog=""
-          fi
-
-          if [ -z "$commit_messages" ]; then
-              commit_messages='- No commits since the previous release'
-          fi
-
-          {
-              echo '## Changes'
-              echo
-              printf '%s\n' "$commit_messages"
-              echo
-              if [ -n "$full_changelog" ]; then
-                  echo "**Full Changelog**: ${full_changelog}"
-              fi
-          } > release-notes.md
-
-          if gh release view "$RELEASE_TAG" >/dev/null 2>&1; then
-              gh release edit "$RELEASE_TAG" --title "$RELEASE_TAG" --notes-file release-notes.md
-          else
-              gh release create "$RELEASE_TAG" --target "${GITHUB_SHA}" --title "$RELEASE_TAG" --notes-file release-notes.md
-          fi

.github/workflows/BuildValidation.yml

@@ -1,32 +0,0 @@
-name: Build Validation
-
-on:
-  workflow_dispatch:
-  push:
-    branches:
-      - main
-  pull_request:
-    types: [opened, synchronize, reopened]
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    steps:
-      - name: checkout Repository
-        uses: actions/checkout@v4
-
-      - name: use NodeJS v24.14.0
-        uses: actions/setup-node@v4
-        with:
-          node-version: '24.14.0'
-
-      - name: install Dependencies
-        run: npm install
-
-      - name: run Build Validation
-        run: npm run check
-
-      - name: run Tests
-        run: npm run test
-        env:
-          CHROME_BIN: google-chrome

AGENTS.md

@@ -3,7 +3,7 @@
 ## Project Context
 
 This is an Angular portfolio application using Angular 21, TypeScript, SCSS,
-Karma/Jasmine tests, and static hosting for production output. Production
+Vitest tests, and static hosting for production output. Production
 application code lives in `src/app`; the client entry point lives in
 `src/main.ts`.
 
@@ -32,7 +32,7 @@ maintain generated or copied output in `public/assets/optimized` or `dist`.
 - `npm run build`: generates assets, builds the production app, and copies
   static root files. Run this only when explicitly requested.
 - `npm start`: serves the built static app through `scripts/static-server.mjs`.
-- `npm test`: generates assets and starts Angular tests with Karma/Jasmine.
+- `npm test`: generates assets and starts Angular tests with Vitest.
 - `npm run check`: runs linting, format checks, version checks, and source text
   checks. Always use this as the final validation.
 - `npm run fix`: places version data, runs ESLint fixes, fixes source text, and

Dockerfile

@@ -1,7 +1,7 @@
 ARG VCS_REF=unknown
 ARG APP_VERSION=unknown
 
-FROM node:24.14.0-bookworm-slim AS build
+FROM node:24.15.0-bookworm-slim AS build
 
 WORKDIR /app
 ENV HUSKY=0
@@ -12,7 +12,7 @@ RUN npm ci --no-audit --no-fund
 COPY . .
 RUN npm run build
 
-FROM node:24.14.0-bookworm-slim AS runtime
+FROM node:24.15.0-bookworm-slim AS runtime
 
 ARG VCS_REF
 ARG APP_VERSION
@@ -21,11 +21,11 @@ WORKDIR /app
 ENV NODE_ENV=production
 
 LABEL org.opencontainers.image.title="Personal Portfolio Website"
-LABEL org.opencontainers.image.description="👋 My portfolio website built with Angular v21 — a concise introduction to who I am and what I build."
+LABEL org.opencontainers.image.description="👋 My portfolio website built with Angular v22 — a concise introduction to who I am and what I build."
 LABEL org.opencontainers.image.licenses="GPL-3.0-only"
 LABEL org.opencontainers.image.version="${APP_VERSION}"
 LABEL org.opencontainers.image.revision="${VCS_REF}"
-LABEL org.opencontainers.image.source="https://github.com/FrauJulian/Personal-Portfolio-Website"
+LABEL org.opencontainers.image.source="https://git.lechner-systems.at/fraujulian/Personal-Portfolio-Website"
 
 COPY --from=build --chown=node:node /app/dist ./dist
 COPY --chown=node:node scripts/static-server.mjs ./scripts/static-server.mjs

README.md

@@ -1,66 +1,75 @@
 # FrauJulian's Portfolio Website
 
-### [Website Preview](https://fraujulian.xyz/)
+## Preview
 
-<img width="2551" height="1175" alt="Portfolio website preview" src="https://github.com/user-attachments/assets/24657c0a-4f95-4573-8472-092984d6cc4e" />
+Visit the live website at [fraujulian.xyz](https://fraujulian.xyz/).
 
-## 👂 Languages / Framework / Packages
+## Technology
 
-- Angular v21
+- Angular 22
 - TypeScript
 - SCSS
+- Vitest for tests
 
-## 💻 Development
+## Features
 
-### Development Preview
+- English and German language options
+- About, work, and project portfolio
+- Contact links and downloadable OpenPGP public key
+- Imprint and privacy information
+- Interactive portrait highlights
+
+## Project Architecture
+
+- `src/app/home` — portfolio landing page
+- `src/app/imprint` — imprint and privacy page
+- `src/app/footer` — site footer
+- `src/app/shared` — reusable UI components
+- `src/app/services` — language and preference services
+- `src/languages` — English and German content
+- `scripts` — asset generation, versioning, and static file tools
+
+## Setup
+
+Requirements: Node.js 24.15 or newer and npm 11.12 or newer.
+
+### Development
 
 ```bash
+npm ci
 npm run dev
 ```
 
-### Building
+The development server generates required static assets and runs the site at
+`http://localhost:4200`.
+
+### Production
 
 ```bash
 npm run build
+npm start
 ```
 
-This will compile your project and store the build artifacts in the `dist/`
-directory. The production build optimizes your application for performance and
-speed.
+The build writes the static site to `dist/browser`. The static server serves the
+built site at `http://localhost:3000`.
 
-### Start compiled Project
-
-```bash
-npm run start
-```
-
-## 🔍 Code Quality
-
-### Lint & Format check
-
-```bash
-npm run check
-```
-
-### Auto-fix lint & format issues
-
-```bash
-npm run fix
-```
-
-## 🧪 Running Unit Tests
-
-To execute unit tests with the [Karma](https://karma-runner.github.io) test
-runner, use the following command:
+## Tests
 
 ```bash
 npm run test
 ```
 
-## 🤝 Enjoy?
+This generates assets and runs the Vitest tests in jsdom.
 
-~ made by [**FrauJulian**](https://fraujulian.xyz/).
+## Docs
 
-Give it a star ⭐ on [GitHub](https://github.com/FrauJulian/Personal-Portfolio-Website)!
+- [Nginx Proxy Manager deployment notes](npm.md)
 
-### Greetings from Austria! ⛰️
+## Guidelines
+
+Run `npm run check` before submitting changes. See [AGENTS.md](AGENTS.md) for
+project conventions.
+
+## LICENSE
+
+Licensed under the [GNU Affero General Public License v3.0](LICENSE).

angular.json

@@ -15,7 +15,7 @@
       "prefix": "app",
       "architect": {
         "build": {
-          "builder": "@angular-devkit/build-angular:application",
+          "builder": "@angular/build:application",
           "options": {
             "outputPath": {
               "base": "dist",
@@ -108,7 +108,7 @@
           "defaultConfiguration": "production"
         },
         "serve": {
-          "builder": "@angular-devkit/build-angular:dev-server",
+          "builder": "@angular/build:dev-server",
           "options": {
             "port": 4200
           },
@@ -123,30 +123,14 @@
           "defaultConfiguration": "development"
         },
         "extract-i18n": {
-          "builder": "@angular-devkit/build-angular:extract-i18n"
+          "builder": "@angular/build:extract-i18n"
         },
         "test": {
-          "builder": "@angular-devkit/build-angular:karma",
+          "builder": "@angular/build:unit-test",
           "options": {
-            "watch": false,
-            "browsers": "ChromeHeadless",
-            "polyfills": ["zone.js", "zone.js/testing"],
+            "buildTarget": "::development",
             "tsConfig": "tsconfig.spec.json",
-            "inlineStyleLanguage": "scss",
-            "assets": [
-              {
-                "glob": "**/*",
-                "input": "src/assets/optimized",
-                "output": "assets/optimized"
-              },
-              {
-                "glob": "**/*",
-                "input": "public",
-                "output": "public"
-              }
-            ],
-            "styles": ["src/styles.scss"],
-            "scripts": []
+            "watch": false
           }
         }
       }

package.json

@@ -3,7 +3,7 @@
   "version": "YYDDDhhmm+GIT_HASH",
   "currentVersion": "3.2.0",
   "engines": {
-    "node": ">=24.14.0",
+    "node": ">=24.15.0",
     "npm": ">=11.12.0"
   },
   "scripts": {
@@ -45,8 +45,8 @@
       "prettier --write"
     ]
   },
-  "repository": "https://github.com/FrauJulian/Personal-Portfolio-Website",
-  "bugs": "https://github.com/FrauJulian/Personal-Portfolio-Website/issues",
+  "repository": "https://git.lechner-systems.at/fraujulian/Personal-Portfolio-Website",
+  "bugs": "https://git.lechner-systems.at/fraujulian/Personal-Portfolio-Website/issues",
   "author": {
     "name": "Lechner Julian",
     "nickname": "FrauJulian",
@@ -55,56 +55,48 @@
   },
   "private": true,
   "dependencies": {
-    "@angular/animations": "^21.2.13",
-    "@angular/cdk": "^21.2.11",
-    "@angular/common": "^21.2.13",
-    "@angular/compiler": "^21.2.13",
-    "@angular/core": "^21.2.13",
-    "@angular/forms": "^21.2.13",
-    "@angular/material": "^21.2.11",
-    "@angular/platform-browser": "^21.2.13",
-    "@angular/platform-browser-dynamic": "^21.2.13",
-    "@angular/platform-server": "^21.2.13",
-    "@angular/router": "^21.2.13",
-    "@angular/ssr": "^21.2.11",
-    "@types/markdown-it": "^14.1.2",
+    "@angular/animations": "^22.2.1",
+    "@angular/cdk": "^22.2.1",
+    "@angular/common": "^22.2.1",
+    "@angular/compiler": "^22.2.1",
+    "@angular/core": "^22.2.1",
+    "@angular/forms": "^22.2.1",
+    "@angular/material": "^22.2.1",
+    "@angular/platform-browser": "^22.2.1",
+    "@angular/platform-browser-dynamic": "^22.2.1",
+    "@angular/platform-server": "^22.2.1",
+    "@angular/router": "^22.2.1",
+    "@angular/ssr": "^22.2.1",
     "express": "^5.2.1",
-    "markdown-it": "^14.1.1",
+    "markdown-it": "^15.0.2",
     "rxjs": "~7.8.0",
-    "tslib": "^2.3.0",
-    "zone.js": "~0.16.2"
+    "tslib": "^2.3.0"
   },
   "devDependencies": {
-    "@angular-devkit/build-angular": "^21.2.11",
-    "@angular/cli": "^21.2.11",
-    "@angular/compiler-cli": "^21.2.13",
+    "@angular/build": "^22.2.1",
+    "@angular/cli": "^22.2.1",
+    "@angular/compiler-cli": "^22.2.1",
     "@types/express": "^5.0.6",
-    "@types/jasmine": "~6.0.0",
     "@types/node": "^25.7.0",
     "@types/showdown": "^2.0.6",
-    "@typescript-eslint/eslint-plugin": "8.59.3",
-    "@typescript-eslint/parser": "8.59.3",
-    "angular-eslint": "21.4.0",
-    "del-cli": "^7.0.0",
+    "@typescript-eslint/eslint-plugin": "8.71.1",
+    "@typescript-eslint/parser": "8.71.1",
+    "angular-eslint": "22.5.0",
     "esbuild": "^0.28.0",
-    "eslint": "10.4.0",
-    "eslint-import-resolver-typescript": "4.4.4",
+    "eslint": "^9.39.4",
+    "eslint-import-resolver-typescript": "^4.4.5",
     "eslint-plugin-import": "2.32.0",
-    "eslint-plugin-n": "18.0.1",
+    "eslint-plugin-n": "^18.4.1",
     "eslint-plugin-promise": "7.3.0",
     "eslint-plugin-unused-imports": "4.4.1",
     "husky": "^9.1.7",
-    "jasmine-core": "~6.2.0",
-    "karma": "~6.4.0",
-    "karma-chrome-launcher": "~3.2.0",
-    "karma-coverage": "~2.2.0",
-    "karma-jasmine": "~5.1.0",
-    "karma-jasmine-html-reporter": "~2.2.0",
-    "postcss": "^8.5.14",
+    "jsdom": "^30.1.2",
+    "postcss": "^8.5.29",
     "postcss-selector-parser": "^7.1.1",
     "prettier": "^3.8.1",
-    "sharp": "^0.34.5",
-    "typescript": "~5.9.3",
-    "typescript-eslint": "8.59.3"
+    "sharp": "^0.35.5",
+    "typescript": "~6.0.3",
+    "typescript-eslint": "8.71.1",
+    "vitest": "^5.0.3"
   }
 }

src/app/app.component.spec.ts

@@ -31,7 +31,9 @@ describe('AppComponent', (): void => {
   });
 
   it('should preselect English by default', (): void => {
-    const comp = component as unknown as { selectedLanguage(): string };
+    const comp = component as unknown as {
+      selectedLanguage(): string;
+    };
     expect(comp.selectedLanguage()).toBe('en');
   });
 
@@ -57,8 +59,8 @@ describe('AppComponent', (): void => {
     fixture.detectChanges();
 
     expect(comp.currentLanguageCode()).toBe('de');
-    expect(comp.isLanguageConfirmed()).toBeTrue();
-    expect(comp.isLanguageSelectorOpen()).toBeFalse();
+    expect(comp.isLanguageConfirmed()).toBe(true);
+    expect(comp.isLanguageSelectorOpen()).toBe(false);
     expect(localStorage.getItem('portfolio-language')).toBe('de');
   });
 
@@ -74,8 +76,8 @@ describe('AppComponent', (): void => {
     };
 
     expect(restoredComponent.currentLanguageCode()).toBe('de');
-    expect(restoredComponent.isLanguageConfirmed()).toBeTrue();
-    expect(restoredComponent.isLanguageSelectorOpen()).toBeFalse();
+    expect(restoredComponent.isLanguageConfirmed()).toBe(true);
+    expect(restoredComponent.isLanguageSelectorOpen()).toBe(false);
   });
 
   it('should reopen the selector after confirmation', (): void => {
@@ -89,6 +91,6 @@ describe('AppComponent', (): void => {
     comp.reopenLanguageSelector();
     fixture.detectChanges();
 
-    expect(comp.isLanguageSelectorOpen()).toBeTrue();
+    expect(comp.isLanguageSelectorOpen()).toBe(true);
   });
 });

src/app/home/home.component.html

@@ -21,7 +21,9 @@
             <a href="https://discord.com/users/860206216893693973" aria-label="Discord profile"
               ><app-icon [icon]="discordIcon" size="lg"></app-icon
             ></a>
-            <a href="https://github.com/fraujulian" aria-label="GitHub profile"><app-icon [icon]="githubIcon" size="lg"></app-icon></a>
+            <a href="https://git.lechner-systems.at/fraujulian" aria-label="Gitea profile"
+              ><app-icon [icon]="githubIcon" size="lg"></app-icon
+            ></a>
             <a href="https://www.linkedin.com/in/julian-lechner-98b377356/" aria-label="LinkedIn profile"
               ><app-icon [icon]="linkedinIcon" size="lg"></app-icon
             ></a>

src/app/home/home.component.spec.ts

@@ -1,5 +1,6 @@
+import type { Mock } from 'vitest';
 import type { ComponentFixture } from '@angular/core/testing';
-import { TestBed, fakeAsync, tick, discardPeriodicTasks } from '@angular/core/testing';
+import { TestBed } from '@angular/core/testing';
 import { provideRouter } from '@angular/router';
 import { IMAGE_LOADER } from '@angular/common';
 import type { ImageLoaderConfig } from '@angular/common';
@@ -14,6 +15,28 @@ import type {
 } from '../../languages/language.types';
 
 describe('HomeComponent', (): void => {
+  beforeEach((): void => {
+    // performance stays real so the change detection timing tests keep measuring.
+    vi.useFakeTimers({
+      toFake: [
+        'setTimeout',
+        'clearTimeout',
+        'setInterval',
+        'clearInterval',
+        'requestAnimationFrame',
+        'cancelAnimationFrame',
+      ],
+    });
+    // jsdom does not implement matchMedia.
+    vi.stubGlobal('matchMedia', (): MediaQueryList => ({ matches: false }) as MediaQueryList);
+  });
+
+  afterEach((): void => {
+    vi.restoreAllMocks();
+    vi.unstubAllGlobals();
+    vi.useRealTimers();
+  });
+
   let fixture: ComponentFixture<HomeComponent>;
   let component: HomeComponent;
 
@@ -63,8 +86,7 @@ describe('HomeComponent', (): void => {
 
   afterEach((): void => {
     // Explicitly destroy to stop the interval(1000) subscription started in ngOnInit.
-    // Without this, the real setInterval keeps the browser's event loop alive after
-    // the test suite completes, causing Karma to disconnect with a 30 s timeout.
+    // Without this, the interval keeps firing after the test has finished.
     fixture.destroy();
   });
 
@@ -151,7 +173,7 @@ describe('HomeComponent', (): void => {
     it('should set isPortraitSwitching to true immediately', (): void => {
       comp.isPortraitSwitching = false;
       comp.showNextPortraitHighlight();
-      expect(comp.isPortraitSwitching).toBeTrue();
+      expect(comp.isPortraitSwitching).toBe(true);
     });
 
     it('should not advance index when already switching', (): void => {
@@ -161,129 +183,124 @@ describe('HomeComponent', (): void => {
     });
 
     it('should not call setTimeout when only one portrait exists', (): void => {
-      const highlights = (comp as unknown as { portraitHighlights: LanguagePortraitHighlight[] })
-        .portraitHighlights;
+      const highlights = (
+        comp as unknown as {
+          portraitHighlights: LanguagePortraitHighlight[];
+        }
+      ).portraitHighlights;
       const saved = [...highlights]; // snapshot before mutation
       highlights.splice(1, saved.length - 1); // reduce to a single entry
 
-      const setSpy = spyOn(window, 'setTimeout');
+      const setSpy = vi.spyOn(window, 'setTimeout');
       comp.showNextPortraitHighlight();
       expect(setSpy).not.toHaveBeenCalled();
 
       highlights.splice(0, highlights.length, ...saved); // restore from snapshot
     });
 
-    it('should advance the portrait index after 125 ms', fakeAsync((): void => {
+    it('should advance the portrait index after 125 ms', async (): Promise<void> => {
       const zone = TestBed.inject(NgZone);
       zone.runOutsideAngular((): void => {
         comp.showNextPortraitHighlight();
       });
-      tick(125);
+      await vi.advanceTimersByTimeAsync(125);
       expect(comp.currentPortraitHighlightIndex).toBe(1);
-      tick(125);
-      discardPeriodicTasks();
-    }));
+      await vi.advanceTimersByTimeAsync(125);
+    });
 
-    it('should reset isPortraitSwitching to false after 250 ms', fakeAsync((): void => {
+    it('should reset isPortraitSwitching to false after 250 ms', async (): Promise<void> => {
       const zone = TestBed.inject(NgZone);
       zone.runOutsideAngular((): void => {
         comp.showNextPortraitHighlight();
       });
-      tick(250);
-      expect(comp.isPortraitSwitching).toBeFalse();
-      discardPeriodicTasks();
-    }));
+      await vi.advanceTimersByTimeAsync(250);
+      expect(comp.isPortraitSwitching).toBe(false);
+    });
 
-    it('should wrap portrait index from the last position back to 0', fakeAsync((): void => {
+    it('should wrap portrait index from the last position back to 0', async (): Promise<void> => {
       comp.currentPortraitHighlightIndex = enLanguage.portraitHighlights.length - 1;
       const zone = TestBed.inject(NgZone);
       zone.runOutsideAngular((): void => {
         comp.showNextPortraitHighlight();
       });
-      tick(125);
+      await vi.advanceTimersByTimeAsync(125);
       expect(comp.currentPortraitHighlightIndex).toBe(0);
-      tick(125);
-      discardPeriodicTasks();
-    }));
+      await vi.advanceTimersByTimeAsync(125);
+    });
   });
 
   // ── Bio toggle ─────────────────────────────────────────────────────────────
 
   describe('toggleBio', (): void => {
-    it('should mount bio immediately on opening', fakeAsync((): void => {
+    it('should mount bio immediately on opening', async (): Promise<void> => {
       comp.toggleBio();
-      expect(comp.isLongBioMounted).toBeTrue();
-      tick(100);
-      discardPeriodicTasks();
-    }));
+      expect(comp.isLongBioMounted).toBe(true);
+      await vi.advanceTimersByTimeAsync(100);
+    });
 
-    it('should set isLongBioShown to true after the double-rAF delay', fakeAsync((): void => {
+    it('should set isLongBioShown to true after the double-rAF delay', async (): Promise<void> => {
       comp.toggleBio();
-      tick(50); // allow both nested requestAnimationFrame calls to execute
+      await vi.advanceTimersByTimeAsync(50); // allow both nested requestAnimationFrame calls to execute
       fixture.detectChanges();
-      expect(comp.isLongBioShown).toBeTrue();
-      discardPeriodicTasks();
-    }));
+      expect(comp.isLongBioShown).toBe(true);
+    });
 
-    it('should set isLongBioShown to false immediately on close', fakeAsync((): void => {
+    it('should set isLongBioShown to false immediately on close', async (): Promise<void> => {
       // Open first
       comp.toggleBio();
-      tick(50);
+      await vi.advanceTimersByTimeAsync(50);
       fixture.detectChanges();
 
       // Close
       comp.toggleBio();
       fixture.detectChanges();
-      expect(comp.isLongBioShown).toBeFalse();
-      tick(300);
-      discardPeriodicTasks();
-    }));
+      expect(comp.isLongBioShown).toBe(false);
+      await vi.advanceTimersByTimeAsync(300);
+    });
 
-    it('should keep isLongBioMounted true during the 300 ms close animation', fakeAsync((): void => {
+    it('should keep isLongBioMounted true during the 300 ms close animation', async (): Promise<void> => {
       comp.toggleBio();
-      tick(50);
+      await vi.advanceTimersByTimeAsync(50);
       fixture.detectChanges();
 
       comp.toggleBio();
       fixture.detectChanges();
-      expect(comp.isLongBioMounted).toBeTrue();
+      expect(comp.isLongBioMounted).toBe(true);
 
-      tick(299);
-      expect(comp.isLongBioMounted).toBeTrue();
+      await vi.advanceTimersByTimeAsync(299);
+      expect(comp.isLongBioMounted).toBe(true);
 
-      tick(1);
+      await vi.advanceTimersByTimeAsync(1);
       fixture.detectChanges();
-      expect(comp.isLongBioMounted).toBeFalse();
-      discardPeriodicTasks();
-    }));
+      expect(comp.isLongBioMounted).toBe(false);
+    });
 
-    it('should cancel pending close timeout when re-opened during animation', fakeAsync((): void => {
+    it('should cancel pending close timeout when re-opened during animation', async (): Promise<void> => {
       comp.toggleBio();
-      tick(50);
+      await vi.advanceTimersByTimeAsync(50);
       fixture.detectChanges();
 
       comp.toggleBio(); // start closing
-      tick(150); // halfway through 300 ms
+      await vi.advanceTimersByTimeAsync(150); // halfway through 300 ms
 
       comp.toggleBio(); // re-open before unmount
-      tick(50);
+      await vi.advanceTimersByTimeAsync(50);
       fixture.detectChanges();
 
-      expect(comp.isLongBioMounted).toBeTrue();
-      expect(comp.isLongBioShown).toBeTrue();
+      expect(comp.isLongBioMounted).toBe(true);
+      expect(comp.isLongBioShown).toBe(true);
 
-      tick(500);
-      discardPeriodicTasks();
-    }));
+      await vi.advanceTimersByTimeAsync(500);
+    });
   });
 
   // ── Scroll helpers ─────────────────────────────────────────────────────────
 
   describe('scroll helpers', (): void => {
-    let scrollSpy: jasmine.Spy;
+    let scrollSpy: Mock;
 
     beforeEach((): void => {
-      scrollSpy = spyOn(window, 'scrollTo');
+      scrollSpy = vi.spyOn(window, 'scrollTo').mockReturnValue(undefined);
     });
 
     it('should call window.scrollTo when scrolling to the about section', (): void => {
@@ -349,20 +366,18 @@ describe('HomeComponent', (): void => {
   // ── Lifecycle cleanup ──────────────────────────────────────────────────────
 
   describe('ngOnDestroy', (): void => {
-    it('should clear pending portrait switch timers on destroy', fakeAsync((): void => {
+    it('should clear pending portrait switch timers on destroy', async (): Promise<void> => {
       comp.showNextPortraitHighlight();
-      const clearSpy = spyOn(window, 'clearTimeout').and.callThrough();
+      const clearSpy = vi.spyOn(window, 'clearTimeout');
 
       fixture.destroy();
 
       expect(clearSpy).toHaveBeenCalled();
-      discardPeriodicTasks();
-    }));
+    });
 
-    it('should not throw when destroyed', fakeAsync((): void => {
+    it('should not throw when destroyed', async (): Promise<void> => {
       expect((): void => fixture.destroy()).not.toThrow();
-      discardPeriodicTasks();
-    }));
+    });
   });
 
   // ── Template rendering ─────────────────────────────────────────────────────
@@ -430,7 +445,7 @@ describe('HomeComponent', (): void => {
 
   describe('Performance', (): void => {
     it('should keep scroll effects enabled on desktop pointers when motion is allowed', (): void => {
-      spyOn(window, 'matchMedia').and.callFake(
+      vi.spyOn(window, 'matchMedia').mockImplementation(
         (query: string): MediaQueryList =>
           ({
             matches:
@@ -439,29 +454,29 @@ describe('HomeComponent', (): void => {
           }) as MediaQueryList,
       );
 
-      expect(comp.shouldEnableScrollEffects()).toBeTrue();
+      expect(comp.shouldEnableScrollEffects()).toBe(true);
     });
 
     it('should keep scroll effects enabled on coarse touch pointers when motion is allowed', (): void => {
-      spyOn(window, 'matchMedia').and.callFake(
+      vi.spyOn(window, 'matchMedia').mockImplementation(
         (query: string): MediaQueryList =>
           ({
             matches: query === '(hover: none) and (pointer: coarse)',
           }) as MediaQueryList,
       );
 
-      expect(comp.shouldEnableScrollEffects()).toBeTrue();
+      expect(comp.shouldEnableScrollEffects()).toBe(true);
     });
 
     it('should disable scroll effects when reduced motion is requested', (): void => {
-      spyOn(window, 'matchMedia').and.callFake(
+      vi.spyOn(window, 'matchMedia').mockImplementation(
         (query: string): MediaQueryList =>
           ({
             matches: query === '(prefers-reduced-motion: reduce)',
           }) as MediaQueryList,
       );
 
-      expect(comp.shouldEnableScrollEffects()).toBeFalse();
+      expect(comp.shouldEnableScrollEffects()).toBe(false);
     });
 
     it('should create and run initial change detection within 200 ms', (): void => {
@@ -480,13 +495,13 @@ describe('HomeComponent', (): void => {
       expect(performance.now() - start).toBeLessThan(100);
     });
 
-    it('should deduplicate rapid schedule calls to a single requestAnimationFrame', fakeAsync((): void => {
-      // The RAF registered during beforeEach's ngOnInit lives outside this fakeAsync zone.
+    it('should deduplicate rapid schedule calls to a single requestAnimationFrame', async (): Promise<void> => {
+      // The RAF registered during beforeEach's ngOnInit is still pending under fake timers.
       // Resetting the ID to null makes the schedule function treat the slot as free.
       comp.scrollAnimationFrameId = null;
 
       let rafCallCount = 0;
-      spyOn(window, 'requestAnimationFrame').and.callFake((): number => {
+      vi.spyOn(window, 'requestAnimationFrame').mockImplementation((): number => {
         rafCallCount++;
         return rafCallCount; // returns non-null so subsequent calls deduplicate
       });
@@ -496,14 +511,13 @@ describe('HomeComponent', (): void => {
       comp.scheduleNameGradientUpdate();
 
       expect(rafCallCount).toBe(1);
-      discardPeriodicTasks();
-    }));
+    });
 
-    it('should deduplicate project-entry reveal scheduling the same way', fakeAsync((): void => {
+    it('should deduplicate project-entry reveal scheduling the same way', async (): Promise<void> => {
       comp.projectEntryAnimationFrameId = null;
 
       let rafCallCount = 0;
-      spyOn(window, 'requestAnimationFrame').and.callFake((): number => {
+      vi.spyOn(window, 'requestAnimationFrame').mockImplementation((): number => {
         rafCallCount++;
         return rafCallCount;
       });
@@ -513,14 +527,13 @@ describe('HomeComponent', (): void => {
       comp.scheduleProjectEntryRevealUpdate();
 
       expect(rafCallCount).toBe(1);
-      discardPeriodicTasks();
-    }));
+    });
 
-    it('should deduplicate about-section scroll scheduling the same way', fakeAsync((): void => {
+    it('should deduplicate about-section scroll scheduling the same way', async (): Promise<void> => {
       comp.aboutSectionAnimationFrameId = null;
 
       let rafCallCount = 0;
-      spyOn(window, 'requestAnimationFrame').and.callFake((): number => {
+      vi.spyOn(window, 'requestAnimationFrame').mockImplementation((): number => {
         rafCallCount++;
         return rafCallCount;
       });
@@ -530,7 +543,6 @@ describe('HomeComponent', (): void => {
       comp.scheduleAboutSectionScrollAnimationUpdate();
 
       expect(rafCallCount).toBe(1);
-      discardPeriodicTasks();
-    }));
+    });
   });
 });

src/app/imprint/imprint.component.spec.ts

@@ -133,7 +133,7 @@ describe('ImprintComponent', (): void => {
     it('should render an "Imprint & Privacy" heading', (): void => {
       const el = fixture.nativeElement as HTMLElement;
       const headings = Array.from(el.querySelectorAll('h1'));
-      expect(headings.some((h): boolean => h.textContent?.includes('Imprint') === true)).toBeTrue();
+      expect(headings.some((h): boolean => h.textContent?.includes('Imprint') === true)).toBe(true);
     });
 
     it('should contain a back link to the portfolio root', (): void => {

src/languages/de.ts

@@ -222,7 +222,7 @@ export const deLanguage: LanguagePack = {
     },
     {
       title: 'Discord Audio Stream Library',
-      link: 'https://github.com/FrauJulian/Discord-Audio-Stream',
+      link: 'https://git.lechner-systems.at/fraujulian/Discord-Audio-Stream',
       description:
         'Eine TypeScript-Library für Discord, die Audiowiedergabe einfacher macht, mit Fokus auf stabile 24/7-Streams ohne Unterbrechungen.',
       skills: ['TypeScript', 'YML'],

src/languages/en.ts

@@ -222,7 +222,7 @@ export const enLanguage: LanguagePack = {
     },
     {
       title: 'Discord Audio Stream Library',
-      link: 'https://github.com/FrauJulian/Discord-Audio-Stream',
+      link: 'https://git.lechner-systems.at/fraujulian/Discord-Audio-Stream',
       description:
         'A TypeScript library for Discord that simplifies audio playback, with a focus on stable 24/7 streaming without interruptions.',
       skills: ['TypeScript', 'YML'],

tsconfig.spec.json

@@ -2,7 +2,7 @@
   "extends": "./tsconfig.json",
   "compilerOptions": {
     "outDir": "./dist/out-tsc/spec",
-    "types": ["jasmine", "node"]
+    "types": ["vitest/globals", "node"]
   },
   "include": ["src/**/*.spec.ts", "src/**/*.d.ts"]
 }