function PLUGIN:BackendListVersions(ctx)
	local cmd = require("cmd")
	local ok, result = pcall(cmd.exec, "printenv MY_TEST_VAR")
	if ok and result then
		local trimmed = result:gsub("%s+$", "")
		return { versions = { trimmed } }
	end
	return { versions = { "fallback" } }
end
