janet: init at 0.4.0 (#57549)

pkgs/development/interpreters/janet/default.nix

@@ -0,0 +1,26 @@
+{ stdenv, fetchFromGitHub }:
+
+stdenv.mkDerivation rec {
+  pname = "janet";
+  version = "0.4.0";
+
+  src = fetchFromGitHub {
+    owner = "janet-lang";
+    repo = "janet";
+    rev = "v${version}";
+    sha256 = "1590f1fxb6qfhf1vp2xhbvdn2jfrgipn5572cckk1ma7f13jnkpy";
+  };
+
+  JANET_BUILD=''\"release\"'';
+  PREFIX = placeholder "out";
+
+  doCheck = true;
+
+  meta = with stdenv.lib; {
+    description = "Janet programming language";
+    homepage = https://janet-lang.org/;
+    license = stdenv.lib.licenses.mit;
+    platforms = platforms.all;
+    maintainers = with stdenv.lib.maintainers; [ andrewchambers ];
+  };
+}