I think if you could improve GEOS somehow. Like adding more ram to the system and writing interesting programs for geos to make it more of an OS that be interesting.

The C64 demo scene is also very cool if you could programs some new interesting demos or write games that incorporated some elements from the demos.

I just love repairing ..restoring and retrobriting these clasic old 8 bits
So far I've done around 6 xC64 ..
Also 4x VIC20 ...2x C16 and 2x Plus 4s
But recently I retrofitted one with a C64 Reloaded MKII board.
The case upper is from a VIC20
Lower case C64
Keyboard C64C so white keys
A custom side port panel in white ABS plastic
..and finished with a black crackle paint job...blue LED and New Commodore and Power silver escutcheons.
rgds
VS

Interesting system. Love the details.

Maybe an idea to add jiffyDOS ROMs

I have an C64 as well. I love that old thing. 😜 I am going to buy a new PSU, as I do not want the old one to take my system down when it fails. This is actually why I am not really using it. PSU's are not exactly cheap, so I will have to wait with using the system untill then.

I have bought one of the black SD2IEC adaptors, wich do not have wires. You just plug it into the back of the system. In the future, I am going to buy an Lumafix as well and I will buy one of them MP32C64 adaptors too. I have a real floppy drive, and yeah.... Floppy disks feel more real, though an SD2IEC are just so awesomme. Hard to choose what I like the best.

EDIT:
This is one of them SD2IEC that I have bought. Same model/look.
https://www.ebay.com/itm/Commodore-64-VIC20-1 … uUAAOSwnHZYjQIq

The C64 is endless fun, particularly with all of the amazing things that the community keep pumping out. I restored one a while back and my interest comes and goes, but it's always set up and ready to rock. Here's my thread which documents the projects I've done - might give you some ideas: Commodore 64 revival (warning, wall of pics)

Personally, my C64 project would be to actually find the damn thing! I've been searching all over the house and have found 2 PSUs, 3 boxes full of games, the datasette, 4 joysticks, composite cable & the RF cable, but no actual Commodore 64 computer. I know I haven't thrown it out, so this beast has got to be lurking about somewhere. I will find it, I'm determined. 🤣