diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
new file mode 100644
index 0000000..29ca2d6
--- /dev/null
+++ b/.devcontainer/devcontainer.json
@@ -0,0 +1,22 @@
+{
+  "image": "mcr.microsoft.com/devcontainers/universal:2",
+  "features": {
+    "ghcr.io/devcontainers/features/nix:1": {
+      "multiUser": false,
+      "extraNixConfig": "experimental-features = nix-command flakes",
+      "version": "latest"
+    },
+    "ghcr.io/devcontainers-extra/features/direnv:1": {
+      "version": "latest"
+    }
+  },
+  "customizations": {
+    "vscode": {
+      "extensions": [
+        "mkhl.direnv",
+        "jnoortheen.nix-ide"
+      ]
+    }
+  },
+  "postStartCommand": "echo 'eval \"$(direnv hook bash)\"' >> ~/.bashrc"
+}
diff --git a/.envrc b/.envrc
new file mode 100644
index 0000000..4f452da
--- /dev/null
+++ b/.envrc
@@ -0,0 +1,11 @@
+# Load the development environment from flake.nix
+use flake
+
+# Uncomment the following line if you want to allow the use of unfree packages
+# export NIXPKGS_ALLOW_UNFREE=1
+
+# Uncomment if you need to specify a specific profile
+# export NIXOS_OZONE_WL=1
+
+# Print a message when the environment is loaded
+echo "DocumentationUI development environment activated via direnv"
diff --git a/.github/ACT_RUNNER_README.md b/.github/ACT_RUNNER_README.md
new file mode 100644
index 0000000..bcb564e
--- /dev/null
+++ b/.github/ACT_RUNNER_README.md
@@ -0,0 +1,67 @@
+# Act Runner Test for Antora UI Default
+
+This directory contains GitHub Actions workflow files that can be tested locally using [Act Runner](https://github.com/nektos/act).
+
+## What is Act Runner?
+
+Act Runner (nektos/act) is a tool that allows you to run GitHub Actions workflows locally. It uses Docker to run the workflows in an environment similar to GitHub Actions.
+
+## Prerequisites
+
+- [Docker](https://www.docker.com/) installed and running
+- [Act Runner](https://github.com/nektos/act) installed
+
+### Installing Act Runner
+
+#### On macOS (using Homebrew):
+```bash
+brew install act
+```
+
+#### On Linux:
+```bash
+curl -s https://raw.githubusercontent.com/nektos/act/master/install.sh | sudo bash
+```
+
+#### On Windows (using Chocolatey):
+```bash
+choco install act-cli
+```
+
+For other installation methods, see the [Act Runner documentation](https://github.com/nektos/act#installation).
+
+## Running the Tests
+
+We've provided a script to run the tests:
+
+```bash
+./act-test.sh
+```
+
+This script will:
+1. Check if Act Runner is installed
+2. Run the GitHub Actions workflow defined in `.github/workflows/ci.yml`
+3. Report the results
+
+Alternatively, you can run Act Runner directly:
+
+```bash
+act --workflows .github/workflows/ci.yml --job build
+```
+
+## Workflow Details
+
+The workflow in `ci.yml` tests:
+- Node.js compatibility (versions 10.x, 12.x, 14.x)
+- Dependency installation
+- Code linting
+- UI bundle building
+
+## Troubleshooting
+
+If you encounter issues:
+
+1. Make sure Docker is running
+2. Check that you have sufficient disk space for Docker images
+3. Try running with verbose output: `act -v --workflows .github/workflows/ci.yml`
+4. For memory issues, you can limit the resources: `act --workflows .github/workflows/ci.yml --job build -P ubuntu-latest=node:14-slim`
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 1d165be..d29a685 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,95 +1,43 @@
 name: CI
 
 on:
-    pull_request:
-      types: [opened, synchronize]
-    workflow_dispatch:
+  push:
+    branches: [ develop ]
+  pull_request:
+    branches: [ develop ]
+  workflow_dispatch:
 
 jobs:
-  setup:
+  build:
     runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-      - name: Cache NPM
-        uses: actions/cache@v2
-        with:
-          path: .cache/npm
-          key: ${{ runner.os }}-npm-cache
-      - name: Install Dependencies
-        run: npm install --quiet --no-progress --cache=.cache/npm
 
-  lint:
-    runs-on: ubuntu-latest
-    needs: setup
-    steps:
-      - uses: actions/checkout@v2
-      - name: Cache NPM
-        uses: actions/cache@v2
-        with:
-          path: .cache/npm
-          key: ${{ runner.os }}-npm-cache
-      - name: Install Dependencies
-        run: npm install --quiet --no-progress --cache=.cache/npm
-      - name: Lint
-        run: node_modules/.bin/gulp lint
+    strategy:
+      matrix:
+        node-version: [10.x, 12.x, 14.x]
 
-  bundle-stable:
-    runs-on: ubuntu-latest
-    if: github.ref == 'refs/heads/develop'
-    needs: setup
     steps:
-      - uses: actions/checkout@v2
-      - name: Cache NPM
-        uses: actions/cache@v2
-        with:
-          path: .cache/npm
-          key: ${{ runner.os }}-npm-cache
-      - name: Install Dependencies
-        run: npm install --quiet --no-progress --cache=.cache/npm
-      - name: Bundle
-        run: node_modules/.bin/gulp bundle
-      - name: Upload Artifact
-        uses: actions/upload-artifact@v4
-        with:
-          name: ui-bundle
-          path: build/ui-bundle.zip
+    - uses: actions/checkout@v2
 
-  bundle-dev:
-    runs-on: ubuntu-latest
-    if: github.ref != 'refs/heads/master' && github.ref != 'refs/heads/develop'
-    needs: setup
-    steps:
-      - uses: actions/checkout@v2
-      - name: Cache NPM
-        uses: actions/cache@v2
-        with:
-          path: .cache/npm
-          key: ${{ runner.os }}-npm-cache
-      - name: Install Dependencies
-        run: npm install --quiet --no-progress --cache=.cache/npm
-      - name: Bundle
-        run: node_modules/.bin/gulp bundle
-      - name: Upload Artifact
-        uses: actions/upload-artifact@v2
-        with:
-          name: ui-bundle
-          path: ui-bundle.zip
-          retention-days: 1
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v2
+      with:
+        node-version: ${{ matrix.node-version }}
+        cache: 'npm'
 
-  upload:
-    name: Create release and upload artifacts
-    needs:
-      - bundle-stable
-    runs-on: ubuntu-latest
-    steps:
-      - name: Download artifacts
-        uses: actions/download-artifact@v4
-      - name: Inspect directory after downloading artifacts
-        run: ls -alFR
-      - name: Create release and upload artifacts
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        run: |
-            wget -q https://github.com/TheAssassin/pyuploadtool/releases/download/continuous/pyuploadtool-x86_64.AppImage
-            chmod +x pyuploadtool-x86_64.AppImage
-            ./pyuploadtool-x86_64.AppImage **/ui-bundle.zip
+    - name: Install dependencies
+      run: npm install
+
+    - name: Lint
+      run: npx gulp lint
+
+    - name: Run CSS Format Tests
+      run: node tests/css-format-test.js
+
+    - name: Build UI bundle
+      run: npx gulp bundle
+
+    - name: Upload UI bundle
+      uses: actions/upload-artifact@v2
+      with:
+        name: ui-bundle
+        path: build/ui-bundle.zip
diff --git a/.gitignore b/.gitignore
index 57834a1..dc8042a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 /build/
 /node_modules/
 /public/
+.direnv/
diff --git a/.vscode/extensions.json b/.vscode/extensions.json
new file mode 100644
index 0000000..377a921
--- /dev/null
+++ b/.vscode/extensions.json
@@ -0,0 +1,5 @@
+{
+    "recommendations": [
+        "asciidoctor.asciidoctor-vscode"
+    ]
+}
\ No newline at end of file
diff --git a/README.adoc b/README.adoc
index 560447b..a3e98a0 100644
--- a/README.adoc
+++ b/README.adoc
@@ -206,6 +206,66 @@ If you need to include source maps in the bundle, you can do so by setting the `
 
 In this case, the bundle will include the source maps, which can be used for debugging your production site.
 
+== Testing with Act Runner
+
+This project includes GitHub Actions workflow files that can be tested locally using https://github.com/nektos/act[Act Runner].
+
+Act Runner allows you to run GitHub Actions workflows locally, which is useful for testing changes before pushing them to GitHub.
+
+=== Prerequisites
+
+To use Act Runner, you need:
+
+* https://www.docker.com/[Docker] installed and running
+* https://github.com/nektos/act[Act Runner] installed
+
+=== Running Tests
+
+There are multiple ways to run tests in this project:
+
+==== Using npm
+
+The simplest way to run tests is using npm:
+
+[source,bash]
+----
+npm test
+----
+
+This will run all tests in the `tests/` directory.
+
+==== Using Act Runner
+
+We've also provided a script to run the GitHub Actions workflow locally using Act Runner:
+
+[source,bash]
+----
+npm run test:act
+# or directly:
+./act-test.sh
+----
+
+This script will:
+
+. Check if Act Runner is installed
+. Run the GitHub Actions workflow defined in `.github/workflows/ci.yml`
+. Report the results
+
+For more detailed information about using Act Runner with this project, see the `.github/ACT_RUNNER_README.md` file.
+
+==== Running Individual Tests
+
+You can also run individual tests directly:
+
+[source,bash]
+----
+# Run CSS format tests
+node tests/css-format-test.js
+
+# Run all tests with the test runner
+tests/run-tests.sh
+----
+
 == Copyright and License
 
 Copyright (C) 2017-present OpenDevise Inc. and the Antora Project.
diff --git a/act-test.sh b/act-test.sh
new file mode 100755
index 0000000..130aab4
--- /dev/null
+++ b/act-test.sh
@@ -0,0 +1,29 @@
+#!/bin/bash
+
+# Script to run GitHub Actions workflow locally using Act Runner
+# https://github.com/nektos/act
+
+# Check if act is installed
+if ! command -v act &> /dev/null; then
+    echo "Error: Act Runner is not installed."
+    echo "Please install it following the instructions at: https://github.com/nektos/act#installation"
+    exit 1
+fi
+
+echo "Running GitHub Actions workflow using Act Runner..."
+echo "=================================================="
+
+# Run the workflow with act
+# Using --workflows flag to specify the workflow file
+# Using --job build to run only the build job
+act --workflows .github/workflows/ci.yml --job build
+
+# Check the exit status
+if [ $? -eq 0 ]; then
+    echo "=================================================="
+    echo "✅ Workflow completed successfully!"
+else
+    echo "=================================================="
+    echo "❌ Workflow failed. Please check the output above for errors."
+    exit 1
+fi
diff --git a/flake.lock b/flake.lock
new file mode 100644
index 0000000..98b75f1
--- /dev/null
+++ b/flake.lock
@@ -0,0 +1,61 @@
+{
+  "nodes": {
+    "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1731533236,
+        "narHash": "sha256-l0KFg5HjrsfsO/JpG+r7fRrqm12kzFHyUHqHCVpMMbI=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "11707dc2f618dd54ca8739b309ec4fc024de578b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1740695751,
+        "narHash": "sha256-D+R+kFxy1KsheiIzkkx/6L63wEHBYX21OIwlFV8JvDs=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "6313551cd05425cd5b3e63fe47dbc324eabb15e4",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/flake.nix b/flake.nix
new file mode 100644
index 0000000..6d79aea
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,43 @@
+{
+  description = "KanbanApi development environment";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+    flake-utils.url = "github:numtide/flake-utils";
+  };
+
+  outputs = { self, nixpkgs, flake-utils, ... }:
+    flake-utils.lib.eachDefaultSystem (system:
+      let
+        pkgs = import nixpkgs {
+          inherit system;
+          overlays = [ ];
+        };
+      in
+      {
+        devShells.default = pkgs.mkShell {
+          name = "kanban-api-dev";
+          buildInputs = with pkgs; [
+
+            # Database tools
+            sqlite # Assuming SQLite is used based on the context
+
+            # Utility tools
+            act # For GitHub Actions local testing
+            sops # For secrets management
+
+            # Development tools
+            jq
+          ];
+
+          shellHook = ''
+            echo "DocumentationUI development environment loaded"
+            # export DOTNET_ROOT=${pkgs.dotnet-sdk_8}
+            # export PATH=$PATH:$HOME/.dotnet/tools
+            # Ensure user-specific .NET tools are available
+            # mkdir -p $HOME/.dotnet/tools
+          '';
+        };
+      }
+    );
+}