diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index 1a1a1c8..66647b5 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -1,13 +1,12 @@
 version: 2
 updates:
-
-- package-ecosystem: github-actions
-  directory: "/"
-  schedule:
-    interval: daily
-    time: '00:00'
-    timezone: UTC
-  open-pull-requests-limit: 10
-  commit-message:
+  - package-ecosystem: github-actions
+    directory: "/"
+    schedule:
+      interval: daily
+      time: "00:00"
+      timezone: UTC
+    open-pull-requests-limit: 10
+    commit-message:
       prefix: "chore"
-      include: "scope"
\ No newline at end of file
+      include: "scope"
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index a31337f..5a93b0b 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -18,111 +18,111 @@ jobs:
       fail-fast: false
       matrix:
         os:
-        - ubuntu-latest
-        - macos-latest
-        - macos-13
+          - ubuntu-latest
+          - macos-latest
+          - macos-13
     runs-on: ${{ matrix.os }}
     steps:
-    - uses: actions/checkout@v4
-    - name: Install Nix
-      uses: ./
-      with:
-        nix_path: ${{ env.nixpkgs_channel }}
-    - run: nix-env -iA cachix -f https://cachix.org/api/v1/install
-    - run: cat /etc/nix/nix.conf
-    # cachix should be available and be able to configure a cache
-    - run: cachix use cachix
-    - run: nix-build test.nix
+      - uses: actions/checkout@v4
+      - name: Install Nix
+        uses: ./
+        with:
+          nix_path: ${{ env.nixpkgs_channel }}
+      - run: nix-env -iA cachix -f https://cachix.org/api/v1/install
+      - run: cat /etc/nix/nix.conf
+      # cachix should be available and be able to configure a cache
+      - run: cachix use cachix
+      - run: nix-build test.nix
 
   custom-nix-path:
     strategy:
       fail-fast: false
       matrix:
         os:
-        - ubuntu-latest
-        - macos-latest
-        - macos-13
+          - ubuntu-latest
+          - macos-latest
+          - macos-13
     runs-on: ${{ matrix.os }}
     steps:
-    - uses: actions/checkout@v4
-    - name: Install Nix
-      uses: ./
-      with:
-        nix_path: ${{ env.nixpkgs_channel }}
-    - run: test $NIX_PATH == '${{ env.nixpkgs_channel }}'
-    - run: nix-build test.nix
+      - uses: actions/checkout@v4
+      - name: Install Nix
+        uses: ./
+        with:
+          nix_path: ${{ env.nixpkgs_channel }}
+      - run: test $NIX_PATH == '${{ env.nixpkgs_channel }}'
+      - run: nix-build test.nix
 
   extra-nix-config:
     strategy:
       fail-fast: false
       matrix:
         os:
-        - ubuntu-latest
-        - macos-latest
-        - macos-13
+          - ubuntu-latest
+          - macos-latest
+          - macos-13
     runs-on: ${{ matrix.os }}
     steps:
-    - uses: actions/checkout@v4
-    - name: Install Nix
-      uses: ./
-      with:
-        nix_path: ${{ env.nixpkgs_channel }}
-        extra_nix_config: |
-          sandbox = relaxed
-    - run: cat /etc/nix/nix.conf
-    - run: nix-build test.nix --arg noChroot true
+      - uses: actions/checkout@v4
+      - name: Install Nix
+        uses: ./
+        with:
+          nix_path: ${{ env.nixpkgs_channel }}
+          extra_nix_config: |
+            sandbox = relaxed
+      - run: cat /etc/nix/nix.conf
+      - run: nix-build test.nix --arg noChroot true
 
   flakes:
     strategy:
       fail-fast: false
       matrix:
         os:
-        - ubuntu-latest
-        - macos-latest
-        - macos-13
+          - ubuntu-latest
+          - macos-latest
+          - macos-13
     runs-on: ${{ matrix.os }}
     steps:
-    - uses: actions/checkout@v4
-    - name: Install Nix
-      uses: ./
-    - run: nix flake show github:NixOS/nixpkgs
+      - uses: actions/checkout@v4
+      - name: Install Nix
+        uses: ./
+      - run: nix flake show github:NixOS/nixpkgs
 
   installer-options:
     strategy:
       fail-fast: false
       matrix:
         os:
-        - ubuntu-latest
-        # - macos-latest missing installer for aarch64-darwin
-        - macos-13
+          - ubuntu-latest
+          # - macos-latest missing installer for aarch64-darwin
+          - macos-13
     runs-on: ${{ matrix.os }}
     steps:
-    - uses: actions/checkout@v4
-    - name: Install Nix
-      uses: ./
-      with:
-        nix_path: ${{ env.nixpkgs_channel }}
-        install_options: --tarball-url-prefix https://nixos-nix-install-tests.cachix.org/serve
-        install_url: https://nixos-nix-install-tests.cachix.org/serve/${{ env.pinned_installer_hash }}/install
-    - run: nix-build test.nix
+      - uses: actions/checkout@v4
+      - name: Install Nix
+        uses: ./
+        with:
+          nix_path: ${{ env.nixpkgs_channel }}
+          install_options: --tarball-url-prefix https://nixos-nix-install-tests.cachix.org/serve
+          install_url: https://nixos-nix-install-tests.cachix.org/serve/${{ env.pinned_installer_hash }}/install
+      - run: nix-build test.nix
 
   oldest-supported-installer:
     strategy:
       fail-fast: false
       matrix:
         os:
-        - ubuntu-latest
-        - macos-latest
-        - macos-13
+          - ubuntu-latest
+          - macos-latest
+          - macos-13
     runs-on: ${{ matrix.os }}
     steps:
-    - uses: actions/checkout@v4
-    - name: Install Nix
-      uses: ./
-      with:
-        nix_path: ${{ env.nixpkgs_channel }}
-        install_url: https://releases.nixos.org/nix/${{ env.oldest_supported_installer }}/install
-    - run: nix-build test.nix
+      - uses: actions/checkout@v4
+      - name: Install Nix
+        uses: ./
+        with:
+          nix_path: ${{ env.nixpkgs_channel }}
+          install_url: https://releases.nixos.org/nix/${{ env.oldest_supported_installer }}/install
+      - run: nix-build test.nix
 
   act-support:
     strategy:
@@ -130,7 +130,17 @@ jobs:
         os: [ubuntu-latest]
     runs-on: ${{ matrix.os }}
     steps:
-    - uses: actions/checkout@v4
-    - run: curl https://raw.githubusercontent.com/nektos/act/master/install.sh | sudo bash
-    - run: docker pull ghcr.io/catthehacker/ubuntu:js-20.04
-    - run: ./bin/act -P ubuntu-latest=ghcr.io/catthehacker/ubuntu:js-20.04 push -j simple-build
+      - uses: actions/checkout@v4
+      - run: curl https://raw.githubusercontent.com/nektos/act/master/install.sh | sudo bash
+      - run: docker pull ghcr.io/catthehacker/ubuntu:js-20.04
+      - run: ./bin/act -P ubuntu-latest=ghcr.io/catthehacker/ubuntu:js-20.04 push -j simple-build
+
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Install Nix
+        uses: ./
+        with:
+          nix_path: nixpkgs=channel:nixos-22.11
+      - run: nix-shell --packages cacert git nodejs pre-commit --pure --run 'pre-commit run --all-files'
diff --git a/.gitignore b/.gitignore
index ffdd18c..c8b5532 100644
--- a/.gitignore
+++ b/.gitignore
@@ -91,3 +91,6 @@ typings/
 
 # DynamoDB Local files
 .dynamodb/
+
+# JetBrains IDEA configuration
+/.idea/
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
new file mode 100644
index 0000000..fa03b8f
--- /dev/null
+++ b/.pre-commit-config.yaml
@@ -0,0 +1,9 @@
+# Configuration file for pre-commit (https://pre-commit.com/).
+# Please run `pre-commit run --all-files` when adding or changing entries.
+
+repos:
+  - repo: https://github.com/pre-commit/mirrors-prettier
+    rev: 6f3cb139ef36133b6f903b97facc57b07cef57c9 # frozen: v3.0.0-alpha.6
+    hooks:
+      - id: prettier
+        stages: [commit]
diff --git a/README.md b/README.md
index d5609db..90d6436 100644
--- a/README.md
+++ b/README.md
@@ -33,11 +33,11 @@ jobs:
   tests:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
-    - uses: cachix/install-nix-action@v27
-      with:
-        nix_path: nixpkgs=channel:nixos-unstable
-    - run: nix-build
+      - uses: actions/checkout@v4
+      - uses: cachix/install-nix-action@v27
+        with:
+          nix_path: nixpkgs=channel:nixos-unstable
+      - run: nix-build
 ```
 
 ## Usage with Flakes
@@ -51,12 +51,12 @@ jobs:
   tests:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
-    - uses: cachix/install-nix-action@v27
-      with:
-        github_access_token: ${{ secrets.GITHUB_TOKEN }}
-    - run: nix build
-    - run: nix flake check
+      - uses: actions/checkout@v4
+      - uses: cachix/install-nix-action@v27
+        with:
+          github_access_token: ${{ secrets.GITHUB_TOKEN }}
+      - run: nix build
+      - run: nix flake check
 ```
 
 To install Nix from any commit, go to [the corresponding installer_test action](https://github.com/NixOS/nix/runs/2219534360) and click on "Run cachix/install-nix-action@XX" step and expand the first line.
@@ -75,7 +75,6 @@ To install Nix from any commit, go to [the corresponding installer_test action](
 
 - `enable_kvm`: whether to enable KVM for hardware-accelerated virtualization on Linux. Enabled by default if available.
 
-
 ## Differences from the default Nix installer
 
 Some settings have been optimised for use in CI environments:
diff --git a/action.yml b/action.yml
index d33114a..c35ec7d 100644
--- a/action.yml
+++ b/action.yml
@@ -1,28 +1,28 @@
-name: 'Install Nix'
-description: 'Installs Nix on GitHub Actions for the supported platforms: Linux and macOS.'
-author: 'Domen Kožar'
+name: "Install Nix"
+description: "Installs Nix on GitHub Actions for the supported platforms: Linux and macOS."
+author: "Domen Kožar"
 inputs:
   extra_nix_config:
-    description: 'Gets appended to `/etc/nix/nix.conf` if passed.'
+    description: "Gets appended to `/etc/nix/nix.conf` if passed."
   github_access_token:
-    description: 'Configure nix to pull from github using the given github token.'
+    description: "Configure nix to pull from github using the given github token."
   install_url:
-    description: 'Installation URL that will contain a script to install Nix.'
+    description: "Installation URL that will contain a script to install Nix."
   install_options:
-    description: 'Additional installer flags passed to the installer script.'
+    description: "Additional installer flags passed to the installer script."
   nix_path:
-    description: 'Set NIX_PATH environment variable.'
+    description: "Set NIX_PATH environment variable."
   enable_kvm:
-    description: 'Enable KVM for hardware-accelerated virtualization on Linux, if available.'
+    description: "Enable KVM for hardware-accelerated virtualization on Linux, if available."
     required: false
     default: true
 branding:
-  color: 'blue'
-  icon: 'sun'
+  color: "blue"
+  icon: "sun"
 runs:
-  using: 'composite'
+  using: "composite"
   steps:
-    - run : ${GITHUB_ACTION_PATH}/install-nix.sh
+    - run: ${GITHUB_ACTION_PATH}/install-nix.sh
       shell: bash
       env:
         INPUT_EXTRA_NIX_CONFIG: ${{ inputs.extra_nix_config }}