I have a PHP script that will export the PICO-8 map to a .map file that can be imported into TIC-80. It will also export the sprite flag data into CSV to be used in a table for my own fset and fget functions (and looks like it would work with gl.itch/musurca's functions (__p8_sflags) as well).
I'd already written the few functions I needed before I found this excellent script. It has been handy to add one or two though.
I've just uploaded my first ever project to the PICO-8 BBS, and am now looking to write the camera code for the TIC-80 so that I can upload the port.
https://gist.github.com/neilpopham/938cb47239be25e6155f020a30681d5b
$ php convert.php foo.p8
Will create foo.p8.map and foo.p8.gff with CSV data.