Hi Steven, thank you very much for proposing this addition!
While I personally love it (and find the svgbob-editor demo very impressive), we are in the process of restricting the ob-* files that we include in Org's core and in GNU Emacs. Not later than a few hours ago, I removed several ob-* files: https://git.savannah.gnu.org/cgit/emacs/org-mode.git/commit/?id=db67c7e9 (ob-svgbob.el should not go in org-contrib, though, because the org-contrib repo is for unmaintained libraries.) I suggest you maintain ob-svgbob.el as a contributed library to GNU ELPA (https://elpa.gnu.org) to help people find it. See the instructions here: https://git.savannah.gnu.org/cgit/emacs/elpa.git/plain/README How does that sound? -- Bastien