please support letsupload.co. https POST. unlimited storage.
Looks like WebDAV is supported - can you try that protocol as Duplicati already has support for it?
Looking more closely, you would need to use Premium with Duplicati:
The other tiers will remove files automatically after 30 or 60 days, which would destroy your Duplicati backups.
i tried webdav without luck. re their free policy it leaves me to wonder if uploading more files every week would preserve all existing files, or if older uploads would still disappear.
That’s a good question, you should ask them for an answer. If older uploaded files disappear then it’s a deal-breaker for Duplicati.