When hankchinaski says 'managed' I think they really mean that there's some capital-A App dashboard somewhere, on Digital Ocean or wherever, and they log in and click 'new database' and that's it. No ssh-ing to a VPS, and choosing the file location where the sqlite file will sit, figuring out backups and so on. But as you say, while you can wrap postgres or redis in that sort of 'just take care of it for me' approach, given the simplicity of sqlite it doesn't fit that paradigm, so perhaps hankchinaski is just misunderstanding what sqlite fundamentally is and how it works.