Gnuchess snap. To build: 1. make snap This will: 1. Fetch gnuchess, xboard and the book's png files. 2. Build the book.bin, for which it needs to build gnuchess itself. 3. Create a snap with gnuchess, xboard, and the book.bin Notes: Xboard integration is not fully working yet. It needs --devmode, and I prefer not to release a devmode snap, as it's a crutch to get over snap limitations which should not affect xboard. I'll wait until snap grows support for the proper interface.