sane-scripts: lift sane-dev-cargo-loop out of resholve

pkgs/additional/sane-scripts/default.nix

@@ -35,10 +35,8 @@ let
           gocryptfs
           ifuse
           inetutils
-          inotify-tools
           iwd
           jq
-          ncurses
           oath-toolkit
           openssh
           openssl
@@ -145,6 +143,11 @@ let
       src = ./src;
       pkgs = [ "coreutils-full" ];
     };
+    dev-cargo-loop = static-nix-shell.mkBash {
+      pname = "sane-dev-cargo-loop";
+      src = ./src;
+      pkgs = [ "inotify-tools" "ncurses" ];
+    };
     ip-check-upnp = static-nix-shell.mkPython3Bin {
       pname = "sane-ip-check-upnp";
       src = ./src;

pkgs/additional/sane-scripts/src/sane-dev-cargo-loop

@@ -1,4 +1,5 @@
-#!/usr/bin/env bash
+#!/usr/bin/env nix-shell
+#!nix-shell -i bash -p inotify-tools -p ncurses
 # watches PWD for any changes underneath it and re-runs `cargo build --a>
 # optionally, provide your own build command as the first argument