Add local (and untracked by git) settings

.gitignore

@@ -6,3 +6,4 @@ qemu/bin/*
 !qemu/bin/.keep
 share/*
 !share/.keep
+nix/local.nix

README.md

@@ -33,6 +33,8 @@ Autodetection is a bash-spaghetti, so you need to check results. BTW it's just a
 
     $ $HOME/appvm/appvm.sh build chromium
 
+You can customize local settings in `nix/local.nix`.
+
 ## Run application
 
     $ appvm.chromium

appvm.sh

@@ -3,6 +3,10 @@
 APPVM_PATH=$(dirname $(realpath $0))
 cd ${APPVM_PATH}
 
+if [ ! -f nix/local.nix ]; then
+    echo -e "{\n}" >> nix/local.nix
+fi
+
 if [[ "$1" == "build" && "$2" != "" ]]; then
     rm qemu/qcow/${2}.qcow2
     NIX_PATH=$NIX_PATH:. nix-build '<nixpkgs/nixos>' -A config.system.build.vm -I nixos-config=nix/${2}.nix || exit 1

nix/base.nix

@@ -1,6 +1,7 @@
 {
   imports = [
     <nix/monitor.nix>
+    <nix/local.nix>
   ];
 
   system.nixos.stateVersion = "18.03";