Guides
How offline knowledge actually works.
We publish what we learn building the library: real file sizes, real part prices and the steps to build your own. Every number links to where it came from.
Parts and prices
What an offline library box costs to build in November 2026
A Raspberry Pi 5, a 1 TB NVMe drive, a case and a power supply cost about $318 today. Here is the full parts list with the price of each part and where we read it.
November 14, 2026 · 5 min read
Offline Wikipedia
How big is Wikipedia offline? The real file sizes in 2026
English Wikipedia is 49.1 GB as text and 119 GB with images. Spanish is 12.4 GB as text. Here is every size we measured, how long the download takes and how to check the file.
November 14, 2026 · 4 min read
Build guide
Build your own offline Wikipedia and maps hotspot on a Raspberry Pi
The whole build in plain steps: the parts, the downloads, the Wi-Fi hotspot and the offline map, with the exact commands and seven things that broke when we built ours.
November 14, 2026 · 6 min read