These docs are meant for you hackers out there... but also for anyone who wants to understand why it's safe to put your moneys into Coldcard.

• pin-entry.md Huge and detailed discussion of PIN codes and the security element that holds the secrets.
• dev-access.md How developers can modify Coldcard to extend it.
• memory-map.md Memory map highlights
• backup-files.md Some details of our encrypted backup files.
• electrum-usage.md Importing seed words into Electrum for funds usage (and other tips).
• bitcoin-core-usage.md How to use with Bitcoin Core.
• limitations.md Documented limitations, policy choices, and TODO items.
• paperwallet.pdf Example paper wallet template file.
• seed-xor.md More about Seed XOR feature, including fully worked Seed XOR example, and useful XOR lookup chart.
• menu-tree.txt Dump of the menu system. Incomplete, may be out of date.