wip: flaked nixos config

Signed-off-by: Carlos Alexandro Becker <[email protected]>

Taskfile.yaml

@@ -26,7 +26,7 @@ tasks:
       - tmux source ~/.config/tmux/tmux.conf
   nixos:
     cmds:
-      - sudo nixos-rebuild switch -I nixos-config=./machines/{{ .HOSTNAME }}.nix
+      - sudo nixos-rebuild switch --flake .#
   darwin:
     status:
       - "test $(uname -s) -ne Darwin"

flake.nix

@@ -39,11 +39,12 @@
     , darwin
     , home-manager
     , nix-index-database
+    , nixpkgs
     , ...
     }@inputs:
     let
       overlays = [
-        inputs.neovim-nightly.overlay # TODO: https://github.com/nix-community/neovim-nightly-overlay/issues/332
+        inputs.neovim-nightly.overlay
         (final: prev: {
           nur = import nur {
             nurpkgs = prev;
@@ -58,6 +59,14 @@
       ];
     in
     {
+      nixosConfigurations = {
+        darkstar = nixpkgs.lib.nixosSystem {
+          system = "x86_64-linux";
+          modules = [
+            ./machines/darkstar.nix
+          ];
+        };
+      };
       darwinConfigurations."supernova" = darwin.lib.darwinSystem {
         system = "aarch64-darwin";
         modules = [ ./machines/supernova.nix ];

machines/darkstar.nix

@@ -6,7 +6,7 @@
   imports =
     [
       ./shared.nix
-      /etc/nixos/hardware-configuration.nix
+      ./hardware/darkstar.nix
     ];
 
   networking.hostName = "darkstar";

machines/hardware/darkstar.nix

@@ -0,0 +1,31 @@
+# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# and may be overwritten by future invocations.  Please make changes
+# to /etc/nixos/configuration.nix instead.
+{ config, lib, pkgs, modulesPath, ... }:
+
+{
+  imports =
+    [ (modulesPath + "/profiles/qemu-guest.nix")
+    ];
+
+  boot.initrd.availableKernelModules = [ "ata_piix" "uhci_hcd" "virtio_pci" "virtio_scsi" "sd_mod" "sr_mod" ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [ "kvm-amd" ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" =
+    { device = "/dev/disk/by-uuid/fde00b54-7779-4e86-b1d2-df0e4f93a59b";
+      fsType = "ext4";
+    };
+
+  swapDevices = [ ];
+
+  # Enables DHCP on each ethernet and wireless interface. In case of scripted networking
+  # (the default) this is the recommended approach. When using systemd-networkd it's
+  # still possible to use this option, but it's recommended to use it in conjunction
+  # with explicit per-interface declarations with `networking.interfaces.<interface>.useDHCP`.
+  networking.useDHCP = lib.mkDefault true;
+  # networking.interfaces.ens18.useDHCP = lib.mkDefault true;
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+}

machines/shared.nix

@@ -1,14 +1,7 @@
 { config, pkgs, ... }:
-let
-  unstableTarball =
-    fetchTarball
-      "https://github.com/NixOS/nixpkgs/archive/nixos-unstable.tar.gz";
-in
-
 {
   imports =
     [
-      <home-manager/nixos>
       ./tailscale.nix
     ];
 
@@ -76,13 +69,7 @@ in
   };
 
   nixpkgs.config = {
-    # Allow unfree packages
     allowUnfree = true;
-    packageOverrides = pkgs: {
-      unstable = import unstableTarball {
-        config = config.nixpkgs.config;
-      };
-    };
   };
 
   nix = {
@@ -98,9 +85,6 @@ in
     };
   };
 
-
-  # List packages installed in system profile. To search, run:
-  # $ nix search wget
   environment.systemPackages = with pkgs; [
     cachix
     curl
@@ -112,18 +96,8 @@ in
     wget
   ];
 
-  # Some programs need SUID wrappers, can be configured further or are
-  # started in user sessions.
-  # programs.mtr.enable = true;
-  # programs.gnupg.agent = {
-  #   enable = true;
-  #   enableSSHSupport = true;
-  # };
   programs.fish.enable = true;
 
-  # List services that you want to enable:
-
-  # Enable the OpenSSH daemon.
   services.openssh.enable = true;
   services.cron.enable = true;
   services.avahi = {
@@ -135,10 +109,4 @@ in
       addresses = true;
     };
   };
-
-  # Open ports in the firewall.
-  # networking.firewall.allowedTCPPorts = [ ... ];
-  # networking.firewall.allowedUDPPorts = [ ... ];
-  # Or disable the firewall altogether.
-  # networking.firewall.enable = false;
 }

machines/tailscale.nix

@@ -2,7 +2,7 @@
 {
   services.tailscale = {
     enable = true;
-    package = pkgs.unstable.tailscale;
+    package = pkgs.tailscale;
   };
 
   # create a oneshot job to authenticate to Tailscale

modules/neovim/config/lua/lsp_keymaps.lua

@@ -37,6 +37,11 @@ M.on_attach = function(bufnr)
     vim.diagnostic.goto_next({ float = false })
     vim.cmd("norm zz")
   end, bufnr)
+
+  keymap("<leader>v", function()
+    vim.cmd("<cmd>vsplit | lua vim.lsp.buf.definition()<CR>")
+    vim.cmd("norm zz")
+  end, bufnr)
 end
 
 return M