nitrokey-firmware: migrate

Co-authored-by: Auguste Baum <auguste.apple@gmail.com>
Co-authored-by: Shahar "Dawn" Or <mightyiampresence@gmail.com>

flake.nix

@@ -12,6 +12,9 @@
   inputs.treefmt-nix.inputs.nixpkgs.follows = "nixpkgs";
   inputs.sops-nix.url = "github:Mic92/sops-nix";
   inputs.sops-nix.inputs.nixpkgs.follows = "nixpkgs";
+  inputs.rust-overlay.url = "github:oxalica/rust-overlay";
+  inputs.rust-overlay.inputs.flake-utils.follows = "flake-utils";
+  inputs.rust-overlay.inputs.nixpkgs.follows = "nixpkgs";
 
   outputs = {
     self,
@@ -20,7 +23,7 @@
     treefmt-nix,
     sops-nix,
     ...
-  }:
+  } @ inputs:
     with builtins; let
       inherit
         (nixpkgs.lib)
@@ -54,7 +57,7 @@
         };
         explicitPkgs = import ./pkgs {
           inherit (pkgs) lib;
-          inherit callPackage;
+          inherit callPackage inputs;
         };
         allPackages = pkgsByName // explicitPkgs;
       in

pkgs/default.nix

@@ -1,7 +1,23 @@
 {
   lib,
   callPackage,
+  inputs,
 }: let
+  linuxSystem = "x86_64-linux";
+  pkgsWithRust = import inputs.nixpkgs {
+    system = linuxSystem;
+    overlays = [inputs.rust-overlay.overlays.default];
+  };
+  pkgsArm = import inputs.nixpkgs {
+    system = linuxSystem;
+    crossSystem.config = "arm-none-eabi";
+  };
+  pkgsAvr = import inputs.nixpkgs {
+    system = linuxSystem;
+    crossSystem.config = "avr";
+  };
+  stdenvArm = pkgsArm.stdenv;
+  stdenvAvr = pkgsAvr.stdenv;
   self = rec {
     # LiberaForms is intentionally disabled.
     # Refer to <https://github.com/ngi-nix/ngipkgs/issues/40>.
@@ -28,6 +44,10 @@
       pretalx-venueless
       pretalx-public-voting
       ;
+    nitrokey-3 = pkgsWithRust.callPackage ./nitrokey-firmware/nitrokey-3 {};
+    nitrokey-pro = callPackage ./nitrokey-firmware/nitrokey-pro.nix {inherit stdenvArm;};
+    nitrokey-start = callPackage ./nitrokey-firmware/nitrokey-start.nix {gcc11StdenvArm = pkgsArm.gcc11Stdenv;};
+    nitrokey-trng-rs232 = callPackage ./nitrokey-firmware/nitrokey-trng-rs232.nix {inherit stdenvAvr;};
   };
 in
   self