expose nixos-remote tools in devshell

README.md

@@ -81,3 +81,17 @@ nixos-remote \
   --flake 'your-flake#your-system' \
   root@yourip
 ```
+
+## Developer guide
+
+To run `nixos-remote` from the repo:
+
+```console
+nix run . -- --help
+```
+
+To format the code
+
+```console
+nix fmt
+```

src/default.nix

@@ -6,9 +6,7 @@
 , coreutils
 , curl
 }:
-writeShellApplication {
+let
-  name = "nixos-remote";
-  text = builtins.readFile ./nixos-remote.sh;
   runtimeInputs = [
     openssh
     gitMinimal # for git flakes
@@ -17,4 +15,12 @@ writeShellApplication {
     coreutils
     curl # when uploading tarballs
   ];
+in
+(writeShellApplication {
+  name = "nixos-remote";
+  text = builtins.readFile ./nixos-remote.sh;
+  inherit runtimeInputs;
+}) // {
+  # also expose this attribute to other derivations
+  inherit runtimeInputs;
 }

src/flake-module.nix

@@ -1,8 +1,11 @@
 {
-  perSystem = { pkgs, ... }: {
+  perSystem = { config, pkgs, ... }: {
-    packages = rec {
+    packages = {
       nixos-remote = pkgs.callPackage ./. { };
-      default = nixos-remote;
+      default = config.packages.nixos-remote;
+    };
+    devShells.default = pkgs.mkShellNoCC {
+      packages = config.packages.nixos-remote.runtimeInputs;
     };
   };
 }