update nixpkgs: 2022-09-30 -> 2022-10-02

have to add nixpkgs stable to pin electrum to a buildable version

```
• Updated input 'mobile-nixos':
    'github:nixos/mobile-nixos/42a30393b5eccaf7f73104fc39a71f0801340f5f' (2022-10-01)
  → 'github:nixos/mobile-nixos/efa5b5fae930370753d2e09361b38d10f0e0a00d' (2022-10-03)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/10ecda252ce1b3b1d6403caeadbcc8f30d5ab796' (2022-09-30)
  → 'github:NixOS/nixpkgs/59d2991d4256cdca1c0cda45d876c80a0fe45c31' (2022-10-02)
```

flake.lock

@@ -39,11 +39,11 @@
     "mobile-nixos": {
       "flake": false,
       "locked": {
-        "lastModified": 1664594671,
-        "narHash": "sha256-45uQc6ssGkFW8xjWn3pcrPPpCoAZdwFL6dkTRgXokFg=",
+        "lastModified": 1664761265,
+        "narHash": "sha256-2noCNHb6oqvrWIEx6xG50E4hjmenxMnMTtfneRvGRTI=",
         "owner": "nixos",
         "repo": "mobile-nixos",
-        "rev": "42a30393b5eccaf7f73104fc39a71f0801340f5f",
+        "rev": "efa5b5fae930370753d2e09361b38d10f0e0a00d",
         "type": "github"
       },
       "original": {
@@ -54,11 +54,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1664538465,
-        "narHash": "sha256-EnlC7dDKX7X1wlnXkB1gmn9rBZQ0J9+biVTZHw//8us=",
+        "lastModified": 1664687381,
+        "narHash": "sha256-9czSuDzS+OGGwq2kC4KXBLXWfYaup+oLB+AA1Md25U4=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "10ecda252ce1b3b1d6403caeadbcc8f30d5ab796",
+        "rev": "59d2991d4256cdca1c0cda45d876c80a0fe45c31",
         "type": "github"
       },
       "original": {
@@ -83,6 +83,21 @@
         "type": "github"
       }
     },
+    "nixpkgs-stable": {
+      "locked": {
+        "lastModified": 1664594436,
+        "narHash": "sha256-YHowMADGzdi7fKnGlg47qe0PIljq+11VqLarmXDuKxQ=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "9cac45850280978a21a3eb67b15a18f34cbffa2d",
+        "type": "github"
+      },
+      "original": {
+        "id": "nixpkgs",
+        "ref": "nixos-22.05",
+        "type": "indirect"
+      }
+    },
     "nixpkgs_2": {
       "locked": {
         "lastModified": 1664177230,
@@ -105,6 +120,7 @@
         "impermanence": "impermanence",
         "mobile-nixos": "mobile-nixos",
         "nixpkgs": "nixpkgs",
+        "nixpkgs-stable": "nixpkgs-stable",
         "sops-nix": "sops-nix"
       }
     },

flake.nix

@@ -4,7 +4,7 @@
 
 {
   inputs = {
-    # nixpkgs.url = "nixpkgs/nixos-22.05";
+    nixpkgs-stable.url = "nixpkgs/nixos-22.05";
     nixpkgs.url = "nixpkgs/nixos-unstable";
     mobile-nixos = {
       url = "github:nixos/mobile-nixos";
@@ -14,11 +14,12 @@
       url = "github:nix-community/home-manager/release-22.05";
       inputs.nixpkgs.follows = "nixpkgs";
     };
+    # TODO: set these up to follow our nixpkgs?
     sops-nix.url = "github:Mic92/sops-nix";
     impermanence.url = "github:nix-community/impermanence";
   };
 
-  outputs = { self, nixpkgs, mobile-nixos, home-manager, sops-nix, impermanence }:
+  outputs = { self, nixpkgs, nixpkgs-stable, mobile-nixos, home-manager, sops-nix, impermanence }:
   let
     patchedPkgs = system: nixpkgs.legacyPackages.${system}.applyPatches {
       name = "nixpkgs-patched-uninsane";
@@ -49,11 +50,14 @@
           nixpkgs.overlays = [
             (import "${mobile-nixos}/overlay/overlay.nix")
             (import ./pkgs/overlay.nix)
-            (next: prev: {
+            (next: prev: rec {
               # non-emulated packages build *from* local *for* target.
               # for large packages like the linux kernel which are expensive to build under emulation,
               # the config can explicitly pull such packages from `pkgs.cross` to do more efficient cross-compilation.
               cross = (nixpkgsFor local target) // (customPackagesFor local target);
+              stable = import nixpkgs-stable { system = target; };
+              # pinned packages:
+              electrum = stable.electrum;
             })
           ];
         }

machines/moby/kernel.nix

@@ -114,7 +114,7 @@ in
   # - phone rotation sensor is off by 90 degrees
   # - ambient light sensor causes screen brightness to be shakey
   # - phosh greeter may not appear after wake from sleep
-  boot.kernelPackages = pkgs.linuxPackagesFor pkgs.cross.linux-megous;
+  boot.kernelPackages = pkgs.cross.linuxPackagesFor pkgs.cross.linux-megous;
 
   boot.kernelPatches = [
     (patchDefconfig (kernelConfig //

nixpatches/10-flutter-arm64.patch

@@ -11,7 +11,7 @@ index 565c44f72e9..f20a3d4e9be 100644
  
 +let vendorHashes = {
 +  x86_64-linux = "sha256-p5EJP2zSvWyRV1uyTHw0EpFsEwAGtX5B9WVjpLmnVew=";
-+  aarch64-linux = "sha256-DVMVPCab+7tSNRKwioQXi0WZnlpvm5tIhO/l1vFX3J8=";
++  aarch64-linux = "sha256-Ps0HmDI6BFxHrLRq3KWNk4hw0qneq5hqB/Mp99f+hO4=";
 +};
 +in
  flutter.mkFlutterApp rec {

nixpatches/list.nix

@@ -37,14 +37,6 @@ fetchpatch: [
     sha256 = "sha256-GtpYSii1c/Kw1NEQ4sVR1nO/kvSa/CSIxuXxL00oBGw=";
   })
 
-  # element-desktop: upgrade electron 19 -> 20
-  # merged 2022/10/01
-  (fetchpatch {
-    # url = "https://git.uninsane.org/colin/nixpkgs/commit/7e6a47b3904f5d8f2a37c35ff2d12772524727a9.diff";
-    url = "https://github.com/NixOS/nixpkgs/pull/193799.diff";
-    sha256 = "sha256-OcqDIoBcphGZfeeOzaS7Ip1khocpkYrpG6tMGExa3S4=";
-  })
-
   # phosh-mobile-settings: init at 0.21.1
   (fetchpatch {
     url = "http://git.uninsane.org/colin/nixpkgs/commit/0c1a7e8504291eb0076bbee3f8ebf693f4641112.diff";
@@ -53,5 +45,12 @@ fetchpatch: [
   })
 
   # fix electrum build: https://github.com/NixOS/nixpkgs/issues/193997
-  ./11-electrum-protobuf-fix.patch
+  # ./11-electrum-protobuf-fix.patch
+  # alternative fix
+  # electrum: make compatible with protobuf 4+  (fixes electrum build)
+  # both of these fail on aarch64, unclear exactly why.
+  (fetchpatch {
+    url = "https://github.com/NixOS/nixpkgs/pull/194112.diff";
+    sha256 = "sha256-Nmvu1U5HBT0YQ5aTE2gf0aaglq/1WpgacCbpqP7F+Qc=";
+  })
 ]