I have tasks that are managed in Trello (for a group) and in Omnifocus (for me).
It is surprisingly difficult to find resources that would allow reflecting changes to a trello card from Omnifocus (eg. mark done, add a note …)
There are some resources that manage to update OF tasks from trello through brute force (look at all the cards, filter those assigned to me, force update of existing OF tasks …). This is interesting, for example.
So if anyone has had to solve the same problem and has (even the outline of) a solution, i’d be happy to have a conversation !