Package 0.16 SDK as separate attributes

README.md

@@ -93,6 +93,32 @@ mkShell {
 }
 ```
 
+## Using specific SDK versions
+
+`zephyr-nix` packages multiple Zephyr SDK versions that can be accessed by their versioned attributes.
+
+- Classic Nix
+```
+{ pkgs, zephyr-nix }:
+pkgs.mkShell {
+  packages = [
+    zephyr-nix.sdks."0.16".sdkFull
+  ];
+}
+```
+
+- Flakes
+
+Flake output schema requires packages to be flat, so the nested SDKs sets are folded into the top-level:
+
+```
+devShells.x86_64-linux.default = pkgs.mkShell {
+  packages = [
+    zephyr-nix.packages.x86_64-linux.sdkFull-0_16
+  ];
+};
+```
+
 ## Building a west project with Nix
 
 For building [west](https://docs.zephyrproject.org/latest/develop/west/index.html) projects with Nix you can use [west2nix](https://github.com/adisbladis/west2nix).

default.nix

@@ -6,7 +6,8 @@
 , gcc_multi
 , autoreconfHook
 , fetchFromGitHub
-, pkgs
+, python310
+, python38
 }:
 
 lib.makeScope newScope (self: let
@@ -16,7 +17,11 @@ lib.makeScope newScope (self: let
 
   sdks = lib.fix (self: {
     "0_17" = mkSdk "0_17" {
-      python3 = pkgs.python310;
+      python3 = python310;
+    };
+
+    "0_16" = mkSdk "0_16" {
+      python3 = python38;
     };
 
     latest = self."0_17";

flake.nix

@@ -7,6 +7,9 @@
     pyproject-nix.url = "github:nix-community/pyproject.nix";
     pyproject-nix.inputs.nixpkgs.follows = "nixpkgs";
 
+    nixpkgs-python.url = "github:cachix/nixpkgs-python";
+    nixpkgs-python.inputs.nixpkgs.follows = "nixpkgs";
+
     zephyr.url = "github:zephyrproject-rtos/zephyr/v3.7.0";
     zephyr.flake = false;
   };
@@ -17,6 +20,7 @@
       nixpkgs,
       zephyr,
       pyproject-nix,
+      nixpkgs-python,
     }:
     (
       let
@@ -46,6 +50,7 @@
             packages' = pkgs.callPackage ./. {
               zephyr-src = zephyr;
               inherit pyproject-nix;
+              python38 = nixpkgs-python.packages.${system}."3.8";
             };
 
             sdks' = removeAttrs packages'.sdks [ "latest" ];