Hello @ZeroCodez!
I was doing some poking around and found this thread in the forums about enabling this feature from the settings page to allow for using custom components on public apps.
Hopefully this works for you, it looks like it will be on cloud (3.100 and up), and on-prem in a upcoming edge release. If you don't see this in your setting, feel free to DM the poster on that thread with your org info so they can flip that feature flag for you 