A way to emulate the "Builtin" package?

[unlimit]

I don't particularly want to create my package with an OOBE file, I'd rather do it the same way the 'Built In' package works. Is there a way to emulate it?

I tried using:

RDXEvents:Bind("INIT_DATABASE_LOADED", nil, function()
 
    local test = RDXDB.GetOrCreatePackage("test");
 
    if not test["test_script"] then
        test["test_script"] = {
            ["ty"] = "Script",
            ["version"] = 1,
            ["data"] = {
                ["script"] = "just random text",
            },
        },  end
end);

But that didn't seem to be cutting it.