Bluesky's For You Feed runs on a gaming PC in someone's living room
In spacecowboy's living room, a single Go process utilizing SQLite operates on a gaming PC equipped with 16 cores, 96GB of RAM, and 4TB of NVMe storage, catering to around 72,000 users of Bluesky's For You Feed. This feed, which is driven by user likes, taps into the Bluesky firehose and stores data for 90 days, currently totaling approximately 419GB. Public traffic is managed through a $7/month OVH VPS using Tailscale. The overall monthly expenses amount to $30, broken down into $20 for electricity, $7 for the VPS, and $3 for domain names. spacecowboy believes this setup could support nearly 1 million daily active Bluesky users with the most economical algorithm. The design illustrates that custom algorithms can function effectively on basic hardware.
Key facts
- For You Feed serves ~72,000 users
- Runs on a single Go process with SQLite
- Hardware: 16-core CPU, 96GB RAM, 4TB NVMe
- Located in spacecowboy's living room
- Recommendations based on likes
- Stores 90 days of data (~419GB SQLite)
- Public traffic via $7/month OVH VPS and Tailscale
- Total cost $30/month; could scale to 1M users
Entities
Institutions
- Bluesky
- OVH
- Tailscale