Gavin> The ASF supports writable Github (mirrored back to our own gitbox.a.o). Gavin> Github Issues is also supported, and all Issues are sent to a mailing list of your choice.
Just my 2c: Apache Calcite has recently moved to gitbox.a.o, and it indeed provides write grants to GitHub. This enables: 1) Labelling PRs 2) Push grants to "forked" repositories to update PRs. In other words, committer can push to the forked branch, so the PR gets updated (e.g. see how I push to zuozhiw/calcite repository in https://github.com/apache/calcite/pull/784 ) Vladimir
