Devine Lu Linvega on Nostr: The html5 emulator for Varvara encodes roms in the url so they can be easily shared. ...

The html5 emulator for Varvara encodes roms in the url so they can be easily shared. The encoding is twofold:

a) A running length compression pass, so series of bytes that look the same are combined:
https://wiki.xxiivv.com/site/ulz_format

b) A base64 encoding so the binary data can be represented with readable characters:
https://wiki.xxiivv.com/site/base64.html

Both schemes have been implemented in uxn natively:

ulzenc: https://git.sr.ht/~rabbits/uxn-utils/tree/main/item/cli/base64/b64enc.tal
b64enc: https://git.sr.ht/~rabbits/uxn-utils/tree/main/item/cli/lz/ulzenc.tal