Initial commit

Signed-off-by: Val Packett <val@invisiblethingslab.com>

flake.nix

@@ -0,0 +1,44 @@
+{
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+    flake-utils.url = "github:numtide/flake-utils";
+    rust-overlay = {
+      url = "github:oxalica/rust-overlay";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+  };
+
+  outputs = { self, nixpkgs, flake-utils, rust-overlay }:
+    flake-utils.lib.eachDefaultSystem
+      (system:
+        let
+          overlays = [ (import rust-overlay) ];
+          pkgs = import nixpkgs {
+            inherit system overlays;
+          };
+          
+          rustToolchain = pkgs.pkgsBuildHost.rust-bin.fromRustupToolchainFile ./rust-toolchain.toml;
+          rustPlatform = pkgs.makeRustPlatform {
+            cargo = rustToolchain;
+            rustc = rustToolchain;
+          };
+          rustPackage = crate:
+            let cargoToml = builtins.fromTOML (builtins.readFile ./${crate}/Cargo.toml);
+            in rustPlatform.buildRustPackage {
+              inherit (cargoToml.package) name version;
+              src = ./${crate};
+              cargoLock.lockFile = ./Cargo.lock;
+              # buildFeatures = features;
+              # buildInputs = runtimeDeps;
+              # nativeBuildInputs = buildDeps;
+            };
+        in
+        {
+          devShells.default = pkgs.mkShell {
+            buildInputs = [ rustToolchain ];
+          };
+
+          packages.sidebus-broker = rustPackage "sidebus-broker";
+        }
+      );
+}