unless, of course, you care about security or a project that is, well, alive... There have been 1 or 2 commits in the last month so I wouldn't bet my data on it.
But I'm hopelessly biassed, working for Nextcloud, so please check github for yourself when you pick a solution for your data - at least look at the pulse over the last week or month before you pick a solution. If you don't know it, here is ours: https://github.com/nextcloud/server/pulse
it shows you the activity in the project. For comparison, this is bad: https://github.com/haiwen/seafile/pulse
Again, I'm biassed, so make your own conclusion, don't rely on mine. I'm just pointing the way.
But I'm hopelessly biassed, working for Nextcloud, so please check github for yourself when you pick a solution for your data - at least look at the pulse over the last week or month before you pick a solution. If you don't know it, here is ours: https://github.com/nextcloud/server/pulse it shows you the activity in the project. For comparison, this is bad: https://github.com/haiwen/seafile/pulse
Again, I'm biassed, so make your own conclusion, don't rely on mine. I'm just pointing the way.