diff --git a/runtimes/priorities/default.nix b/runtimes/priorities/default.nix
new file mode 100644
index 0000000..128310a
--- /dev/null
+++ b/runtimes/priorities/default.nix
@@ -0,0 +1,66 @@
+[
+    "node-javascript"
+    "python2"
+    "python3"
+    "bash"
+    "clojure"
+    "cobol-gnu-cobol"
+    "crystal"
+    "dart"
+    "dash"
+    "deno-javascript"
+    "deno-typescript"
+    "elixir"
+    "erlang"
+    "gawk-awk"
+    "openjdk11_headless-java"
+    "ruby"
+    "zig"
+    "vlang"
+    "swift"
+    "node-typescript"
+    "sqlite"
+    "rscript"
+    "raku"
+    "racket"
+    "powershell"
+    "prolog"
+    "ponylang"
+    "php"
+    "perl"
+    "octave"
+    "ocaml"
+    "nim"
+    "nasm"
+    "nasm-nasm64"
+    "mono-csharp"
+    "lua"
+    "lolcode"
+    "sbcl-lisp"
+    "jvm-kotlin"
+    "julia"
+    "jelly"
+    "openjdk-java"
+    "iverilog"
+    "ghc-haskell"
+    "groovy"
+    "go"
+    "gcc-c"
+    "gcc-c++"
+    "gcc-d"
+    "gcc-fortran"
+    "yabasic"
+    "emacs"
+    "gnat-ada"
+    "rust"
+    "dotnet-sdk-csharp"
+    "dotnet-sdk-fsharp"
+    "dotnet-sdk-fsharp-interactive"
+    "dotnet-sdk-visual-basic"
+    "fpc-pascal"
+    "brainfuck"
+    "node-coffeescript"
+    "jvm-scala"
+    "llvm_ir"
+    "mono-basic"
+]
diff --git a/runtimes/scaffold.sh b/runtimes/scaffold.sh
index 2a49ef2..11bf5a6 100755
--- a/runtimes/scaffold.sh
+++ b/runtimes/scaffold.sh
@@ -32,9 +32,13 @@ else
         .scaffold.nix > $NAME.nix
     echo "}" >> default.nix
 
-    git add $NAME.nix default.nix
+    sed -i '$d' ./priorities/default.nix
+    echo "    \"$NAME\"" >> ./priorities/default.nix
+    echo "]" >> ./priorities/default.nix
+
+    git add $NAME.nix default.nix ./priorities
 
     echo "Scaffolded $NAME"
     echo "Edit $NAME.nix to get started"
     echo "Once you are done, run ./piston test $NAME to test it"
-fi
\ No newline at end of file
+fi