Try using julia defined by flake (on master)

Author: thomasjm

extract_artifacts.jl

@@ -1,5 +1,3 @@
-#! /usr/bin/env nix-shell
-#! nix-shell -i julia -p julia-lts-bin
 
 using Pkg, Pkg.Artifacts, Pkg.BinaryPlatforms, Pkg.PlatformEngines
 

flake.lock

@@ -1,7 +1,7 @@
 {
   description = "julia2nix";
 
-  inputs.nixpkgs.url = "github:NixOS/nixpkgs/release-22.05";
+  inputs.nixpkgs.url = "github:NixOS/nixpkgs/master";
   inputs.flake-utils.url = "github:numtide/flake-utils";
 
   outputs = { self, nixpkgs, flake-utils }:
@@ -21,7 +21,7 @@
               cp -r ${./templates} $out/bin/templates
 
               wrapProgram $out/bin/julia2nix \
-               --set PATH ${lib.makeBinPath [nix python3]}
+               --set PATH ${lib.makeBinPath [nix python3 julia-stable-bin]}
             '';
           };
         });

flake.nix

@@ -96,7 +96,7 @@ def process_item(name):
         if url and githash:
             sha256 = fetch_sha256(url, rev=githash)
             src = 'fetchgit { ' + f'url = "{url}"; rev = "{githash}"; sha256 = "{sha256}";' + ' }'
-            artifacts = subprocess.check_output([script_dir.joinpath("extract_artifacts.jl"), src]).decode()
+            artifacts = subprocess.check_output(["julia", script_dir.joinpath("extract_artifacts.jl"), src]).decode()
 
             # If our URL came from the Manifest file, modify it to point to a Nix path
             if details[0].get("repo-url"):