So what do you do when your TI-99/4A system is expanded as far as possible? Simple, start another system! I'm not sure where I'll take this one next, but so far...
.. currently my beige "portable system" has a TIPI/32K with RPi ZERO W and a speech synthesizer. Hopefully someday the F-18A MK2 will finally hit the market. This entry will be updated if/when anything changes!