This playlist might well be of interest, there's plenty of Apple II content:
https://www.youtube.com/playlist?list=P ... yeHUJ-H00rKansasFest 2019 - Keynote - Mark Pelczarski
KansasFest 2019 - New Product Announcements
KansasFest 2019 - Streaming Video on the Apple II
KansasFest 2019 - Apple II Software Hall of Fame Draft
KansasFest 2019 - Fully Relocatable Machine Language Routines
KansasFest 2019 - Ready Player Two: Two Player Karateka Conversion
KansasFest 2019 - Video Chat with Jordan Mechner
KansasFest 2019 - Whiz Kids Script Table Read
KansasFest 2019 - Layperson's Guide To Fix and Convert Joysticks
KansasFest 2019 - What A Difference Every Year Makes: Updates for the Internet Archive
KansasFest 2019 - Assembly Language: Short and Sweet (Lightning Talks)
KansasFest 2019 - Lightning Talks (General)
KansasFest 2019 - Marat][on 2019 - The First Run
KansasFest 2019 - Oregon Trail in Minecraft!
KansasFest 2019 - Debugging Using Emulator Time Travel
KansasFest 2019 - Managing Your Apple II Website
KansasFest 2019 - A P P L E 's Blast from the Past
KansasFest 2019 - PLATO (Programmed Logic for Automatic Teaching Operations)
KansasFest 2019 - Beneath Beneath Apple Manor
KansasFest 2019 - Track center Alignment for 5 25 inch Drives
KansasFest 2019 - Choose Your Own Adventure
KansasFest 2019 -
Intel Inside: Run 8080 Programs, Virtually, on an Apple IIKansasFest 2019 - Juiced GS 2019 Update
KansasFest 2019 - Funding the 8 bit Dream
KansasFest 2019 - Data Compression for the 6502
KansasFest 2019 - Total Replay
KansasFest 2019 - SWEET16
KansasFest 2019 - Renderific, the SVG Renderer
KansasFest 2019 HackFest Entries