First version of a new fantasy console/computer from Lexaloffle is available to purchase now, on sale till the end of the month.
I haven't tried it yet (other than limited messing around with the Picotron playground in the past), but am excited to check it out soon.
From their website,
Picotron is a Fantasy Workstation for making pixelart games, animations, music, demos and other curiosities. It has a toy operating system designed to be a cosy creative space, but runs on top of Windows, MacOS or Linux. Picotron apps can be made with built-in tools, and shared with other users in a special 256k png cartridge format.
Excellent video introduction by Krystian (Lazy Devs) here.
And like PICO-8, you can play anything posted to the BBS in your browser here
I've been seeing videos for it all over Mastodon and it's really cool. I never got into Pico-8 since I felt it was too limiting, but Picotron looks a lot more open and easy to use. Really want to get my hands on it when it's out of alpha.