PicoShare is a minimalist file-sharing service you host yourself: upload any file and get a direct download link that anyone can open, with no ads, no signups, and no size or format restrictions. Send a client a 4 GB video or a raw photo archive and they download the exact bytes you uploaded, because PicoShare never resizes or re-encodes media while sharing. Every upload can carry an expiration, from a day to never, and an optional private note that only you can see. When other people need to send files to you, create a guest link instead of asking for email attachments: guests upload through the link with no account, and you set the maximum file size, the total number of uploads, and an expiry date for each link. The files list shows everything you have shared with sizes, upload dates, and expirations, and every entry offers one-click link copying and deletion. A single shared secret guards the admin side, and all data lives in one SQLite database file that you can back up or replicate to cloud storage automatically. Run it as one small Docker container on your own domain and your download links stay yours. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. AGPL-3.0 licensed.