{
	description = "Nidus sync";

	inputs = {
		nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.11";
		flake-utils.url = "github:numtide/flake-utils";
		proj.url = "github:Gleipnir-Technology/proj";
		stapelberg = {
			url = "github:stapelberg/nix";
			inputs.nixpkgs.follows = "nixpkgs";
		};
	};

	outputs = { self, nixpkgs, flake-utils, proj, stapelberg }:
		flake-utils.lib.eachDefaultSystem (system:
			let
				pkgs = import nixpkgs {
					inherit system;
					overlays = [ stapelberg.overlays.goVcsStamping ];
				};
				projPkg = proj.packages.${system}.default;

				package = pkgs.callPackage ./default.nix {
					ldflags = ldflags;
					proj = projPkg;
					version = packageVersion;
				};
				# Pull VCS metadata from the flake's own git source.
				# These fields are available when the flake lives inside a git checkout.
				gitRevision = self.sourceInfo.rev or "dirty";
				gitShortRev = self.sourceInfo.shortRev or "dirty";
				gitDateTime = self.sourceInfo.lastModifiedDate or "unknown";

				# Derive a human-readable version from the git date + short rev.
				# lastModifiedDate is YYYYMMDDHHMMSS; pull out just YYYY-MM-DD.
				packageVersion =
				let
				y  = builtins.substring 0 4 gitDateTime;
				m  = builtins.substring 4 2 gitDateTime;
				d  = builtins.substring 6 2 gitDateTime;
				in "${y}-${m}-${d}.${gitShortRev}";

				ldflags = [
				"-s" "-w"
				"-X main.BuildTime=${gitDateTime}"
				"-X main.Revision=${gitRevision}"
				"-X main.Version=${packageVersion}"
       				];

			in
			{
				packages.default = package;
				packages.nidus-sync = package;

				# Development shell configuration
				devShells.default = pkgs.mkShell {
					buildInputs = [
						pkgs.air
						pkgs.autoprefixer
						pkgs.dart-sass
						pkgs.go
						pkgs.go-jet
						pkgs.golangci-lint
						pkgs.goose
						pkgs.gotools
						pkgs.lefthook
						pkgs.nodejs
						pkgs.pkg-config
						pkgs.pnpm
						pkgs.prettier
						pkgs.prettier-plugin-go-template
						proj.packages.${system}.default
						pkgs.typescript
						pkgs.watchexec
					];
				};
			}
		);
}