I'm sure you already saw this, but in case others haven't: https://blondihacks.com/veronica/ is required reading for anyone into 6502. I was trying to rehabilitate a Cocktail Joust arcade cabinet I'd had in storage for years, and instead went off into a 6809 time warp for a while. Quinn's 6502 blog articles were helpful for inspiration while I breadboarded a really basic 6809 computer.

I ended up giving away the Joust machine to a guy (https://web.archive.org/web/20200709102945/http://www.robotr...) who had poured his heart and soul into Robotron disassembly and also was the Joust world-record holder in 1983, so I knew he'd appreciate it at least as much as I did. He happened to live in the area, and was more than happy to drive over and load it up. It's been 13 years since then. I hope he and it are doing well!

Factoid: It takes about six hours to reach 10 million points on Joust. Christian's record was 98 million points!

Not having my 'a-ha' moment with pointers until years into my education when doing assembly made me wonder why we don't start with a half-adder and work our way up from there instead of throwing novices right into C++ or Java OOP with no context.

That's how my comp sci degree went at Georgia Tech. There was a data structures and algorithms class first that used Java but then 2110 was building a computer from the (simulated) transistors up. I would've never understood pointers or C in general otherwise lol

Old greybeard here - I went the other way, learning 6502 assembler on an Apple II before I learned C. Having that 6502 experience when I first took a C class helped me immensely.

I think any kind of assembly experience is tremendously helpful in learning C. Assembly makes pointers and pointer arithmetic very intuitive, in my opinion.