Add flake.nix

Add a new flake.nix for this repo, having extracted it from
nixos-configs. Add packages.nix copied from nixos-configs, as I
accidentally removed it while filtering to create this repo.

flake.lock

@@ -0,0 +1,106 @@
+{
+  "nodes": {
+    "devshell": {
+      "inputs": {
+        "flake-utils": [
+          "flake-utils"
+        ],
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1654858401,
+        "narHash": "sha256-53bw34DtVJ2bnF6WEwy6Tym+qY0pNEiEwARUlvmTZjs=",
+        "owner": "numtide",
+        "repo": "devshell",
+        "rev": "f55e05c6d3bbe9acc7363bc8fc739518b2f02976",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "devshell",
+        "type": "github"
+      }
+    },
+    "flake-utils": {
+      "locked": {
+        "lastModified": 1653893745,
+        "narHash": "sha256-0jntwV3Z8//YwuOjzhV2sgJJPt+HY6KhU7VZUL0fKZQ=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "1ed9fb1935d260de5fe1c2f7ee0ebaae17ed2fa1",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "home-manager": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1654113405,
+        "narHash": "sha256-VpK+0QaWG2JRgB00lw77N9TjkE3ec0iMYIX1TzGpxa4=",
+        "owner": "nix-community",
+        "repo": "home-manager",
+        "rev": "ac2287df5a2d6f0a44bbcbd11701dbbf6ec43675",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "ref": "release-22.05",
+        "repo": "home-manager",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1654994491,
+        "narHash": "sha256-HFu3HTFFFcZSKImuiki3q+MLvcc85hRgYvW+sXmH8LE=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "1f8d88087a3753e55a29b5207f7f0997f7c813fa",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-22.05",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs-samw": {
+      "locked": {
+        "lastModified": 1655065841,
+        "narHash": "sha256-jFtkxS6k/LzJ/RvDuTk1x/igcRwE7JIoXXv8Lh/QauY=",
+        "owner": "wlcx",
+        "repo": "nixpkgs",
+        "rev": "794deaa7696e76e3f1159f27d2fe8607a4e1f0e6",
+        "type": "github"
+      },
+      "original": {
+        "owner": "wlcx",
+        "ref": "pngpaste-0.2.3",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "devshell": "devshell",
+        "flake-utils": "flake-utils",
+        "home-manager": "home-manager",
+        "nixpkgs": "nixpkgs",
+        "nixpkgs-samw": "nixpkgs-samw"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,95 @@
+{
+  description = "Samw's home environment, as managed by nix/home-manager.";
+  inputs = {
+    # Nixpkgs
+    nixpkgs = {url = "github:nixos/nixpkgs/nixos-22.05";};
+    nixpkgs-samw = {url = "github:wlcx/nixpkgs/pngpaste-0.2.3";};
+    # Other modules
+    home-manager = {
+      url = "github:nix-community/home-manager/release-22.05";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+    flake-utils.url = "github:numtide/flake-utils";
+    devshell = {
+      url = "github:numtide/devshell";
+      inputs.flake-utils.follows = "flake-utils";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+  };
+  outputs = inputs: let
+    overlays = [
+      # Add packages from "other" nixpkgs
+      (final: prev:
+        with inputs; {
+          # TODO: get pngpaste PR merged...
+          pngpaste = nixpkgs-samw.legacyPackages.${prev.system}.pngpaste;
+        })
+      # Add our own local packages
+      (final: prev: rec {
+        # Make my local packages available as pkgs.mypkgs.<foo>
+        mypkgs = prev.callPackage ./pkgs {};
+        # Directly override yubikey-manager
+        yubikey-manager = mypkgs.yubikey-manager;
+      })
+    ];
+  in (rec {
+      lib = {
+        mkHome = {
+          profile,
+          extraModules ? [],
+          system,
+          username ? "samw",
+        }:
+          inputs.home-manager.lib.homeManagerConfiguration rec {
+            inherit username system;
+            stateVersion = "21.11";
+            homeDirectory =
+              if (inputs.nixpkgs.lib.systems.elaborate system).isDarwin
+              then "/Users/${username}"
+              else "/home/${username}";
+            configuration = {...} @ args: ((profile args) // {nixpkgs.overlays = overlays;});
+            extraSpecialArgs = {inherit system;};
+            inherit extraModules;
+          };
+      };
+      profiles = import ./home/profiles.nix;
+
+      # Standalone home-manager configurations
+      homeConfigurations = {
+        boron = lib.mkHome {
+          system = "aarch64-darwin";
+          profile = profiles.laptop;
+          username = "samuel.willcocks";
+          extraModules = [./home/docker.nix ./home/aws.nix];
+        };
+        zinc = lib.mkHome {
+          profile = profiles.laptop;
+          system = "aarch64-darwin";
+        };
+      };
+    }
+    # Per-system things
+    // (inputs.flake-utils.lib.eachDefaultSystem (system: let
+      pkgs = import inputs.nixpkgs {
+        inherit system;
+        overlays = overlays ++ [inputs.devshell.overlay];
+      };
+      platform = pkgs.lib.systems.elaborate system;
+    in {
+      # Flake interface to my local packages.
+      # - `callPackage` puts some junk in mypkgs (`override` and
+      #   `overrideDerivation`) so we filter out anything that isn't a derivation
+      # - We also filter out any packages that aren't supported on the current
+      #   platform.
+      packages = with pkgs; (lib.filterAttrs (_: v: (lib.isDerivation v
+        && lib.meta.availableOn platform v))
+      pkgs.mypkgs);
+      formatter = pkgs.alejandra;
+      # A devshell with useful utils
+      devShells.default = pkgs.devshell.mkShell {
+        packages = [
+          inputs.home-manager.defaultPackage.${system}
+        ];
+      };
+    })));
+}

home/default.nix

@@ -1,8 +1,8 @@
 { pkgs, lib, ... }:
 
-let mypkgs = pkgs.callPackage ../modules/pkgs.nix { };
+ let packages  = pkgs.callPackage ./packages.nix {};
 in {
-  home.packages = mypkgs.all;
+  home.packages = packages.all;
   home.sessionVariables = {
     "PATH" = "$HOME/.local/bin:$PATH";
     "EDITOR" = "vim";

home/packages.nix

@@ -0,0 +1,24 @@
+{ pkgs }:
+with pkgs; rec {
+  # The stuff you want installed everywhere. The necessities.
+  base = [
+    bat # cat replacement, aliased to cat in home-manager
+    file
+    git
+    htop
+    lsof
+    mosh
+    tmux
+    unzip
+    vim
+    wget
+  ];
+
+  # Networking shit
+  net = [ iperf3 nmap socat tcpdump ];
+
+  # development tools
+  dev = [ jq nixfmt gh glab hexyl ];
+
+  all = (base ++ net ++ dev);
+}

pkgs/qrclip/default.nix

@@ -1,6 +1,12 @@
-{ pkgs }:
+{
-let zbar = pkgs.mypkgs.zbar.override { enableVideo = false; };
+  pkgs,
-in pkgs.writeShellScriptBin "qrclip" ''
+  lib,
+  stdenv,
+}: let
+  zbar = pkgs.mypkgs.zbar.override {enableVideo = false;};
+in
+  (pkgs.writeShellScriptBin "qrclip" ''
     set -eo pipefail
     ${pkgs.pngpaste}/bin/pngpaste - | ${zbar}/bin/zbarimg --raw -q1 -
-''
+  '')
+  // {meta.platforms = lib.platforms.darwin;}