Something that is so custom that it either hasn’t been tested on more than one computer, or something whose interpreter is unavailable (although you could submit it in that case w your entry.
Hi folks! I’ve got one entry so far . . . please submit! The deadline for remotely submitted IF entries has been extended to 12:30 PM on Saturday, June 18. Email your entry to val dot grimm at gmail with your name or handle and information on the interpreter or other tool needed to run it. Thanks!