Ask HN: What CMS options are there with good localisation support?

I've been trying to find a relatively flexible CMS that supports localisation of everything (e.g. both in templates and in generated content), but I haven't found a huge amount of options. CraftCMS seems to be the most straightforward one I've found so far, but what other options are there? Language doesn't matter especially, but it does need to be fairly easy to customise/extend.

I'm sure there's a WordPress plugin for it but I would really rather not go there again :)

Very grateful for any suggestions!