diff --git a/.envrc b/.envrc
new file mode 100644
index 0000000..5333707
--- /dev/null
+++ b/.envrc
@@ -0,0 +1,4 @@
+if ! has nix_direnv_version || ! nix_direnv_version 2.2.1; then
+  source_url "https://raw.githubusercontent.com/nix-community/nix-direnv/2.2.1/direnvrc" "sha256-zelF0vLbEl5uaqrfIzbgNzJWGmLzCmYAkInj/LNxvKs="
+fi
+use flake .
diff --git a/.forgejo/workflows/renovate-config-validation.yaml b/.forgejo/workflows/renovate-config-validation.yaml
new file mode 100644
index 0000000..bb1dce6
--- /dev/null
+++ b/.forgejo/workflows/renovate-config-validation.yaml
@@ -0,0 +1,15 @@
+---
+name: Checking Renovate configuration
+
+on:  # yamllint disable-line rule:truthy
+  pull_request:
+
+jobs:
+  validate:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v4
+      - name: Validate Renovate configuration
+        uses: suzuki-shunsuke/github-action-renovate-config-validator@v1.1.1
+...
diff --git a/.forgejo/workflows/rust.yml b/.forgejo/workflows/rust.yml
new file mode 100644
index 0000000..0dba416
--- /dev/null
+++ b/.forgejo/workflows/rust.yml
@@ -0,0 +1,149 @@
+---
+# yamllint disable rule:line-length
+
+name: Build and test
+
+on:  # yamllint disable-line rule:truthy
+  pull_request:
+
+jobs:
+  tests:
+    name: Tests
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Cache Rust toolchain and dependencies
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cargo
+            ~/.rustup
+            target
+          key: ${{ runner.os }}-rustup-cargo-test-${{ hashFiles('rust-toolchain.toml', 'rust-toolchain') || 'stable' }}
+          restore-keys: |
+            ${{ runner.os }}-rustup-cargo-test-
+      - name: Install Rust toolchain
+        uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: stable
+          components: rustfmt
+          override: true
+      - name: Show versions
+        run: |
+          rustc --version
+          cargo --version
+      - name: Check formatting
+        uses: actions-rs/cargo@v1
+        with:
+          command: fmt
+          args: --check
+      - name: Run tests
+        uses: actions-rs/cargo@v1
+        with:
+          command: test
+  clippy:
+    name: Clippy
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Cache Rust toolchain and dependencies
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cargo
+            ~/.rustup
+            target
+          key: ${{ runner.os }}-rustup-cargo-clippy-${{ hashFiles('rust-toolchain.toml', 'rust-toolchain') || 'stable' }}
+          restore-keys: |
+            ${{ runner.os }}-rustup-cargo-clippy-
+      - name: Install Rust toolchain
+        uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: stable
+          components: clippy
+          override: true
+      - name: Show versions
+        run: |
+          rustc --version
+          cargo --version
+      - name: Clippy check
+        uses: actions-rs/cargo@v1
+        with:
+          command: clippy
+          args: -- -D warnings
+
+  build-amd64:
+    name: Build AMD64
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Cache Rust toolchain and dependencies
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cargo
+            ~/.rustup
+            target
+          key: ${{ runner.os }}-rustup-cargo-build-${{ hashFiles('rust-toolchain.toml', 'rust-toolchain') || 'stable' }}
+          restore-keys: |
+            ${{ runner.os }}-rustup-cargo-build-
+      - name: Install Rust toolchain
+        uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: stable
+          override: true
+      - name: Show versions
+        run: |
+          rustc --version
+          cargo --version
+      - name: Build release binary
+        uses: actions-rs/cargo@v1
+        with:
+          command: build
+          args: --release --all-features
+      - name: Upload binary artifact
+        uses: https://code.forgejo.org/forgejo/upload-artifact@v4
+        with:
+          name: cbz2pdf-linux-amd64
+          path: target/release/cbz2pdf
+
+  rustdoc:
+    name: Generate Documentation
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Cache Rust toolchain and dependencies
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cargo
+            ~/.rustup
+            target
+          key: ${{ runner.os }}-rustup-cargo-doc-${{ hashFiles('rust-toolchain.toml', 'rust-toolchain') || 'stable' }}
+          restore-keys: |
+            ${{ runner.os }}-rustup-cargo-doc-
+      - name: Install Rust toolchain
+        uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: stable
+          override: true
+      - name: Show versions
+        run: |
+          rustc --version
+          cargo --version
+      - name: Generate documentation
+        uses: actions-rs/cargo@v1
+        with:
+          command: doc
+      - name: Compress documentation
+        run: tar -czf rustdoc.tar.gz -C target doc
+      - name: Upload documentation artifact
+        uses: https://code.forgejo.org/forgejo/upload-artifact@v4
+        with:
+          name: rustdoc
+          path: rustdoc.tar.gz
+...
diff --git a/.forgejo/workflows/yamllint.yaml b/.forgejo/workflows/yamllint.yaml
new file mode 100644
index 0000000..1b5cb26
--- /dev/null
+++ b/.forgejo/workflows/yamllint.yaml
@@ -0,0 +1,18 @@
+---
+name: Checking yaml
+
+on:  # yamllint disable-line rule:truthy
+  pull_request:
+
+jobs:
+  yamllint:
+    name: Run yamllint
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v4
+      - name: Run YAML linter
+        uses: bewuethr/yamllint-action@v1
+        with:
+          config-file: .yamllint.yaml
+...
diff --git a/.gitignore b/.gitignore
index ea8c4bf..3f4b997 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,5 @@
+.direnv/
+.idea/
 /target
+.rust-toolchain
+.pre-commit-config.yaml
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
deleted file mode 100644
index b004b0e..0000000
--- a/.gitlab-ci.yml
+++ /dev/null
@@ -1,61 +0,0 @@
----
-stages:
-  - test
-  - build
-  - publish
-
-
-default:
-
-tests:
-  stage: test
-  image: rust
-  before_script:
-    - rustc --version
-    - cargo --version
-    - rustup component add rustfmt
-  script:
-    - cargo fmt --check
-    - cargo test
-
-build:amd64:
-  stage: build
-  image: rust
-  before_script:
-    - rustc --version
-    - cargo --version
-  script:
-    - cargo build --release
-  artifacts:
-    paths:
-      - target/release/cbz2pdf
-
-rustdoc:
-  stage: build
-  image: rust
-  before_script:
-    - rustc --version
-    - cargo --version
-  script:
-    - cargo doc
-  artifacts:
-    paths:
-      - target/doc
-
-pages:
-  stage: publish
-  image: alpine
-  dependencies:
-    - build:amd64
-    - rustdoc
-  script:
-    - mkdir -p public
-    - mv target/doc public/doc
-    - mv target/release/cbz2pdf public/cbz2pdf-amd64
-  artifacts:
-    paths:
-      - public
-  only:
-    - main
-...
-
diff --git a/.yamllint.yaml b/.yamllint.yaml
new file mode 100644
index 0000000..79bc82f
--- /dev/null
+++ b/.yamllint.yaml
@@ -0,0 +1,30 @@
+---
+ignore: |
+  .platformio
+  secrets.yaml
+
+rules:
+  braces: enable
+  brackets: enable
+  colons: enable
+  commas: enable
+  comments: enable
+  comments-indentation: enable
+  document-end: enable
+  document-start: enable
+  empty-lines:
+    max: 1
+  empty-values: disable
+  hyphens: enable
+  indentation: enable
+  key-duplicates: enable
+  key-ordering: disable
+  line-length:
+    max: 100
+  new-line-at-end-of-file: enable
+  new-lines: enable
+  octal-values: enable
+  quoted-strings: disable
+  trailing-spaces: enable
+  truthy: enable
+...
diff --git a/flake.lock b/flake.lock
new file mode 100644
index 0000000..d818c70
--- /dev/null
+++ b/flake.lock
@@ -0,0 +1,121 @@
+{
+  "nodes": {
+    "flake-compat": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1747046372,
+        "narHash": "sha256-CIVLLkVgvHYbgI2UpXvIIBJ12HWgX+fjA8Xf8PUmqCY=",
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "rev": "9100a0f413b0c601e0533d1d94ffd501ce2e7885",
+        "type": "github"
+      },
+      "original": {
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "type": "github"
+      }
+    },
+    "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"
+      }
+    },
+    "gitignore": {
+      "inputs": {
+        "nixpkgs": [
+          "pre-commit-hooks",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1709087332,
+        "narHash": "sha256-HG2cCnktfHsKV0s4XW83gU3F57gaTljL9KNSuG6bnQs=",
+        "owner": "hercules-ci",
+        "repo": "gitignore.nix",
+        "rev": "637db329424fd7e46cf4185293b9cc8c88c95394",
+        "type": "github"
+      },
+      "original": {
+        "owner": "hercules-ci",
+        "repo": "gitignore.nix",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1755615617,
+        "narHash": "sha256-HMwfAJBdrr8wXAkbGhtcby1zGFvs+StOp19xNsbqdOg=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "20075955deac2583bb12f07151c2df830ef346b4",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "pre-commit-hooks": {
+      "inputs": {
+        "flake-compat": "flake-compat",
+        "gitignore": "gitignore",
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1755960406,
+        "narHash": "sha256-RF7j6C1TmSTK9tYWO6CdEMtg6XZaUKcvZwOCD2SICZs=",
+        "owner": "cachix",
+        "repo": "git-hooks.nix",
+        "rev": "e891a93b193fcaf2fc8012d890dc7f0befe86ec2",
+        "type": "github"
+      },
+      "original": {
+        "owner": "cachix",
+        "repo": "git-hooks.nix",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs",
+        "pre-commit-hooks": "pre-commit-hooks"
+      }
+    },
+    "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..d3dd6f0
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,39 @@
+{
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+    flake-utils.url = "github:numtide/flake-utils";
+    pre-commit-hooks = {
+      url = "github:cachix/git-hooks.nix";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+  };
+
+  outputs =
+    { self
+    , nixpkgs
+    , flake-utils
+    , ...
+    }@inputs:
+    flake-utils.lib.eachDefaultSystem (system:
+    let
+      pkgs = import nixpkgs {
+        inherit system;
+      };
+      # Place all toolchain components in a single directory for IntelliJ
+      rust-toolchain = pkgs.symlinkJoin {
+        name = "rust-toolchain";
+        paths = with pkgs; [
+          rustc
+          cargo
+          rustPlatform.rustcSrc
+        ] ++ lib.optionals stdenv.isDarwin [
+          libiconv
+        ];
+      };
+    in
+    {
+      checks = import ./nix/git-hooks.nix { inherit inputs pkgs; };
+      devShells = import ./nix/shell.nix { inherit pkgs rust-toolchain self; };
+      formatter = pkgs.nixpkgs-fmt;
+    });
+}
diff --git a/nix/git-hooks.nix b/nix/git-hooks.nix
new file mode 100644
index 0000000..355da46
--- /dev/null
+++ b/nix/git-hooks.nix
@@ -0,0 +1,65 @@
+{ inputs, pkgs, ... }:
+let
+  conventional-commit = pkgs.callPackage ./pkgs/conventional-pre-commit.nix { };
+in
+{
+  pre-commit-check = inputs.pre-commit-hooks.lib.${pkgs.system}.run {
+    src = ./..;
+    hooks = {
+      # TOML
+      check-toml.enable = true;
+
+      # YAML
+      check-yaml.enable = true;
+
+      # Nix
+      deadnix.enable = true;
+      flake-checker.enable = true;
+      nixpkgs-fmt.enable = true;
+      statix.enable = true;
+
+      # Rust
+      clippy = {
+        enable = true;
+        settings = {
+          denyWarnings = true;
+        };
+        extraPackages = with pkgs; [
+          openssl
+          pkg-config
+        ];
+      };
+      rustfmt.enable = true;
+      cargo-check = {
+        enable = true;
+        extraPackages = with pkgs; [
+          pkg-config
+          openssl
+        ];
+      };
+
+      # Git
+      no-commit-to-branch = {
+        enable = true;
+        settings = {
+          branch = [ "main" ];
+        };
+      };
+      conventional-commit = {
+        enable = true;
+        name = "conventional-commit";
+        description = "A pre-commit hook that checks commit messages for Conventional Commits formatting";
+        package = conventional-commit;
+        entry = "${conventional-commit}/bin/conventional-pre-commit";
+        args = [ "--strict" "feat" "fix" "chore" "revert" "style" "docs" "build" "refactor" "test" "ci" "perf" ];
+        stages = [ "commit-msg" ];
+      };
+    };
+
+    settings = {
+      rust.check.cargoDeps = pkgs.rustPlatform.importCargoLock {
+        lockFile = ../Cargo.lock;
+      };
+    };
+  };
+}
diff --git a/nix/pkgs/conventional-pre-commit.nix b/nix/pkgs/conventional-pre-commit.nix
new file mode 100644
index 0000000..dbeb136
--- /dev/null
+++ b/nix/pkgs/conventional-pre-commit.nix
@@ -0,0 +1,20 @@
+{ python3Packages, fetchPypi, ... }:
+
+python3Packages.buildPythonApplication rec {
+  pname = "conventional_pre_commit";
+  version = "4.2.0";
+
+  src = fetchPypi {
+    inherit pname version;
+    hash = "sha256-a1ooZzOMWKHRTTAN5otWwXt8hAO7EiFV84Y5pCPSH/E=";
+  };
+
+  doCheck = false;
+  pyproject = true;
+
+  build-system = with python3Packages; [
+    setuptools
+    setuptools-scm
+    wheel
+  ];
+}
diff --git a/nix/shell.nix b/nix/shell.nix
new file mode 100644
index 0000000..549c164
--- /dev/null
+++ b/nix/shell.nix
@@ -0,0 +1,36 @@
+{ pkgs, rust-toolchain, self, ... }:
+
+{
+  default = pkgs.mkShell {
+    name = "cbz2pdf";
+    buildInputs = with pkgs; [
+      cargo
+      cargo-edit
+      cargo-insta
+      cargo-machete
+      cargo-release
+      cargo-sort
+      git-cliff
+      openssl
+      pkg-config
+      rustc
+      rust-toolchain
+    ] ++ lib.optionals stdenv.isDarwin [
+      libiconv
+    ] ++ self.checks.${pkgs.system}.pre-commit-check.enabledPackages;
+    RUST_BACKTRACE = 1;
+
+    # Copy rust-toolchain to project directory for easy use in IntelliJ
+    shellHook = ''
+      if [ -L ./.rust-toolchain ] && [ "$(readlink ./.rust-toolchain)" = "${rust-toolchain}" ]; then
+        echo "Rust toolchain symlink is already correct."
+      else
+        rm -f ./.rust-toolchain
+        ln -s ${rust-toolchain} ./.rust-toolchain
+        echo "Rust toolchain symlink updated."
+      fi
+
+      ${self.checks.${pkgs.system}.pre-commit-check.shellHook}
+    '';
+  };
+}
diff --git a/renovate.json b/renovate.json
new file mode 100644
index 0000000..aa41364
--- /dev/null
+++ b/renovate.json
@@ -0,0 +1,7 @@
+{
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+  "assignees": ["kernald"],
+  "extends": [
+    "config:recommended"
+  ]
+}