hi, i got started on that decklist thing and have a work in progress. i am now looking at some styling with a friend and will then propose the changes when its ready.
meanwhile, i cleaned up the php code a bit (phpstorm complaining about unused variables and such, unified the mixed line endings to be all unix line endings). the changes are here: https://github.com/dbu/wordpress-mtg/pull/2/files (use “diff settings” to hide whitespace change, otherwise the line ending cleanup makes the diff unusable)
does it work for you to take changes from such a git diff? you can make github show you the new file and copy that, then use your tooling to compare and decide which changes you want to take.