Make development experience work

Add direnv to default build
Add xonsh-direnv package to overlay and xonsh environment
Add virtualisation options

flake.nix

@@ -17,8 +17,10 @@
 
 	outputs = inputs:
 	let
+		local_overlay = import ./overlays;
+
 		mods = hostname: [
-			{ nixpkgs.overlays = [ inputs.nur.overlay ]; }
+			{ nixpkgs.overlays = [ inputs.nur.overlay local_overlay ]; }
 			inputs.agenix.nixosModule
 			./modules
 			./profiles/base

home/direnv.nix

@@ -0,0 +1,13 @@
+{ pkgs, ... }:
+
+{
+	programs.direnv = {
+		enable = true;
+		nix-direnv.enable = true;
+		nix-direnv.enableFlakes = true;
+	};
+
+	home.packages = [
+		pkgs.xonsh-direnv
+	];
+}

home/home.nix

@@ -8,6 +8,7 @@ in {
 	imports = [
 		./modules
 		./bash.nix
+		./direnv.nix
 		./git.nix
 		./ssh.nix
 		./vim.nix

home/ssh.nix

@@ -35,6 +35,11 @@
 			"src.fedoraproject.org pkgs.fedoraproject.org" = {
 				user = "greghellings";
 			};
+
+			"127.*".extraOptions = {
+				PubkeyAcceptedAlgorithms = "+ssh-rsa";
+				HostkeyAlgorithms = "+ssh-rsa";
+			};
 		};
 	};
 

home/vim.nix

@@ -15,13 +15,16 @@ in
 	programs.vim = {
 		enable = true;
 		plugins = with pkgs.vimPlugins; [
+			ansible-vim
 			bufexplorer
 			ctrlp
+			direnv-vim
 			nerdtree
 			vim-gitgutter
 			vim-flake8
 			vim-fugitive
 			vim-indent-guides
+			vim-packer
 			gruvbox
 			syntastic
 		];

home/xonsh.nix

@@ -49,6 +49,8 @@ in {
 # $? == _.rtn
 
 import os
+
+xontrib load direnv
 '';
 
 #$PKG_CONFIG_PATH = '/usr/local/lib/pkgconfig'

hosts/jude/default.nix

@@ -5,6 +5,7 @@
 		./boot.nix
 		./hardware-configuration.nix
 		./podman.nix
+		./virt.nix
 	];
 	networking.hostName = "jude";
 	greg.gnome.enable= true;

hosts/jude/virt.nix

@@ -0,0 +1,25 @@
+{ pkgs, ... }:
+
+{
+	environment.systemPackages = with pkgs; [
+		ansible
+		libguestfs
+		packer
+		virt-manager
+		vagrant
+	];
+
+	# Give my user access to the libvirtd process
+	users.users.greg.extraGroups = [ "libvirtd" ];
+
+	virtualisation.libvirtd = {
+		enable = true;
+		onBoot = "ignore";  # Do not auto-restart VMs on boot, unless they are marked autostart
+	};
+
+	virtualisation.waydroid = {
+		enable = true;
+	};
+
+	boot.extraModprobeConfig = "options kvm_amd nested=1";
+}

overlays/default.nix

@@ -0,0 +1,12 @@
+self: super:
+{
+	xonsh-direnv = super.callPackage ./xonsh-direnv.nix {
+		#lib = self.lib;
+		buildPythonPackage = self.python3.pkgs.buildPythonPackage;
+		fetchPypi = self.python.pkgs.fetchPypi;
+	};
+
+	xonsh = super.xonsh.overridePythonAttrs (old: rec{
+		propagatedBuildInputs = old.propagatedBuildInputs ++ [ self.xonsh-direnv ];
+	});
+}

overlays/defeault.nix

@@ -1,6 +0,0 @@
-self: super:
-{
-	git = super.git.override {
-		meta.priority = 4;
-	};
-}

overlays/xonsh-direnv.nix

@@ -0,0 +1,20 @@
+{ lib, buildPythonPackage, fetchPypi, pkgs}:
+
+buildPythonPackage rec {
+	pname = "xonsh-direnv";
+	version = "1.5.0";
+
+	src = fetchPypi {
+		inherit pname version;
+		sha256 = "OLjtGD2lX4Yf3aHrxCWmAbSPZnf8OuVrBu0VFbsna1Y=";
+	};
+
+	meta = with lib; {
+		description = "Direnv support for Xonsh";
+		homepage = "https://github.com/74th/xonsh-direnv/";
+		license = licenses.mit;
+		maintainers = [];
+	};
+
+	doCheck = false;
+}

profiles/base/nix.nix

@@ -10,6 +10,10 @@
 experimental-features = nix-command flakes
 min-free = ${toString (1024 * 1024 * 1024) }
 max-free = ${toString (5 * 1024 * 1024 * 1024) }
+
+# Used by direnv
+keep-outputs = true
+keep-derivations = true
 '';
 
 		# Use hardlinking instead of copying when possible

profiles/base/programs.nix

@@ -1,6 +1,12 @@
 { pkgs, agenix, ... }:
 
-{
+let
+	myPackages = pypackages: with pypackages; [
+		pkgs.xonsh-direnv
+	];
+
+	myPython = pkgs.python3.withPackages myPackages;
+in {
 	# Base packages that need to be in all my hosts
 	environment.systemPackages = with pkgs; [
 		agenix.defaultPackage."${system}"
@@ -10,7 +16,7 @@
 		findutils
 		home-manager
 		htop
-		python3
+		myPython
 		pwgen
 		tmux
 		transcrypt