Paste the license key from your Gumroad receipt (it also appears in your
Gumroad Library under the product). It looks like
XXXXXXXX-XXXXXXXX-XXXXXXXX-XXXXXXXX. No account, no login: the key
decrypts the file inside your browser and nothing you type is sent anywhere.
pip install cryptography, then
WARN_LICENSE_KEY=… python3 rt_client.py realtime > held_back.csv).
Same key, same files, no browser.How this works / what is public. The encrypted files and one small key-wrapper per active licence live in this public repository; a wrapper is named by the SHA-256 of the licence key and can only be opened with that key. Refunded or cancelled licences lose their wrapper at the next refresh and the file key at the next monthly rotation (at most ~31 days of residual access). Do not share your key — it is your receipt.