feat: Support Nix

.gitignore

@@ -1,2 +1,3 @@
 node_modules
-build
+build
+/node

README.md

@@ -298,6 +298,14 @@ bm-create-pr --target
 Add --individual flag to import layer into standalone individual config file, otherwise import into aerial map.
 Add --vector flag to import new layer into vector map.
 
+## Development environment
+
+Prerequisite: [Nix](https://nixos.org/download/)
+
+When entering the project directory, run `nix-shell` to activate the development environment.
+
+On initial use, and when `package-lock.json` changes, run `npm i` to install Node.js packages. This will create a `node` executable in the root of the repo which you can use as the IDE interpreter.
+
 ## Versioning and Release
 
 To publish a release, the Pull Request opened by `release-please` bot needs to be merged:

shell.nix

@@ -0,0 +1,18 @@
+let
+  pkgs = import (
+    builtins.fetchTarball {
+      url = "https://github.com/nixos/nixpkgs/archive/d934204a0f8d9198e1e4515dd6fec76a139c87f0.tar.gz";
+      sha256 = "1zfby2jsfkag275aibp81bx1g1cc305qbcy94gqw0g6zki70k1lx";
+    }
+  ) {};
+
+in
+  pkgs.mkShell {
+    packages = [
+      pkgs.bashInteractive
+      pkgs.nodejs_20
+    ];
+    shellHook = ''
+      ln --force --no-target-directory --symbolic "${pkgs.nodejs}/bin/node" node
+    '';
+  }