I needed a simple way to move a bunch of photos from my Android phone to my computer. Taking a detour through the cloud feels repugnant to me.
So I decided to hack together a very simple Go tool that starts a webserver, offers a multipart upload form and simply writes any files POSTed via the form to the directory it was started in.
The idea is that my smartphone and my computer are in the same local WiFi network anyway, so file uploads can happen at fast local speeds.
Simply start mulapisu in the directory where you want to receive files from your phone in. Point your phone's browser to one of the URLs that are shown, select files to upload (can be multiple), wait a few moments, done.