Drop schalter

It stays OpenWrt for now and doesn't eat its own sd card every 12
months.

flake.nix

@@ -613,14 +613,6 @@
           system = "aarch64-linux";
         };
 
-        schalter = nixosSystem' {
-          modules = [
-            "${nixos}/nixos/modules/installer/sd-card/sd-image-raspberrypi.nix"
-            ./hosts/schalter
-          ];
-          system = "x86_64-linux";
-        };
-
         scrape = nixosSystem' {
           modules = [
             self.nixosModules.microvm

hosts/schalter/default.nix

@@ -1,40 +0,0 @@
-{ lib, ... }:
-
-{
-  networking.hostName = "schalter";
-  hardware.enableRedistributableFirmware = true;
-  powerManagement.cpuFreqGovernor = lib.mkDefault "performance";
-
-  boot = {
-    loader = {
-      grub.enable = false;
-      raspberryPi = {
-        enable = true;
-        version = 1;
-        uboot.enable = false;
-      };
-      generic-extlinux-compatible.enable = lib.mkForce false;
-    };
-    # no zfs required
-    supportedFilesystems = lib.mkForce [ "vfat" "ext4" ];
-
-    tmp.useTmpfs = true;
-  };
-
-  nixpkgs.config.packageOverrides = pkgs: {
-    makeModulesClosure = x:
-      # prevent kernel install fail due to missing modules
-      pkgs.makeModulesClosure (x // { allowMissing = true; });
-  };
-
-  sdImage = {
-    compressImage = false;
-    imageBaseName = "schalter";
-    firmwareSize = 512;
-  };
-
-  # can't find zstd library on armv6...
-  services.nginx.recommendedZstdSettings = lib.mkForce false;
-
-  nixpkgs.crossSystem = lib.systems.examples.raspberryPi;
-}

overlays/default.nix

@@ -92,8 +92,6 @@ with final; {
 
   readsb = callPackage ./readsb.nix { };
 
-  schalterd = callPackage ./schalterd.nix { };
-
   telme10 = callPackage ./telme10.nix { };
 
   tracer-game =

overlays/schalterd.nix

@@ -1,15 +0,0 @@
-{ pkgsCross, fetchFromGitHub }:
-
-pkgsCross.armv7l-hf-multiplatform.pkgsStatic.rustPlatform.buildRustPackage {
-  name = "schalterd";
-
-  src = "${fetchFromGitHub {
-    owner = "astro";
-    repo = "spacemsg";
-    # master of 2023-07-02
-    rev = "a825a738544e62c285f4497c151a73d417326da2";
-    sha256 = "sha256-8sM2GdQ2nJ3YCCF5+ZW0vBNTKL3/ulY1/fmyw++5UQQ=";
-  }}/schalterd";
-
-  cargoSha256 = "sha256-OdNztl4XQML2UqK/4BLzKed3pBJNd9rIwHEXaIzLQ4U=";
-}