Help! I need a really simple image hosting solution

For my Masters thesis project, I’m required to keep a blog documenting my progress, and being the open source/self hosting guy that I am, I decided to host my own WriteFreely instance on my VPS. The problem is, WriteFreely doesn’t support direct image uploads, only embeds. I’d of course like to self host my images for the blog too, so I’m in need of a really lightweight image hosting solution. Things like Immich or Nextcloud are far too much for what I need, I basically just need a password-protected upload interface and the ability to grab the direct links to the images to embed them. I don’t need analytics or account management or anything like that. I know I could transfer images to my server directly via scp or rsync or ftp and host them behind nginx directly, but that’s a faff and I’d rather just deploy a container once and be done with it. Does anyone have any recommendations?