• Your company has a patch allowing installing binary code from other sources • When you want to update to a new version of Elm, do git rebase and reapply the

• Your company has a patch allowing installing binary code from other sources • When you want to update to a new version of Elm, do git rebase and reapply the patch. • Now your source tree and history is identical to upstream, plus one commit Most likely the code restricting installing binaries from only one source isn’t changing a lot, so patch conflicts should not be too much of a hinderance