[shakna]

Do you know how it was ported to the Switch?

TIC-80 uses SDL, which doesn't have a working port (for the Switch) so far as I know.

[djur]

The commercial release of Celeste is a new game, written from scratch, implemented in C# (XNA/FNA/MonoGame). It includes a port of the original. I'm kind of curious if they actually wrote a PICO-8 emulator for that or just ported it to C#.

[barbs]

They have a Github repo with some of the source code up (mostly just stuff to do with character movement and control).

https://github.com/noelfb/celeste

Apparently it's based on this framework:

https://bitbucket.org/MattThorson/monocle-engine/src/default...

[AlyssaRowan]

They ported the PICO-8 version line by line to C#. Since there aren't that many lines, apparently it wasn't that hard.

[doppp]

There is an SDL port for the Switch but it's under NDA and you need to request access for it [1].

[1] https://twitter.com/icculus/status/981730137736712192

[theresistor]

There's an SDL port, but it can't be publicly distributed due to NDAs.