Who and what this covers
cronburg.com is run by Karl Cronburg, one person, on hardware he owns. This policy covers the website and one personal application that uses a Google API: a Gmail backup tool (the Google Cloud app named kdesk-ai). The tool has exactly one user, Karl, and reads only Karl's own mailbox. There is no sign-up and no way for anyone else to use it.
Google API Services — Limited Use
The use and transfer of information received from Google APIs to any other app adheres to the Google API Services User Data Policy, including the Limited Use requirements.
What the Gmail backup reads, and why
It requests one permission:
https://www.googleapis.com/auth/gmail.readonly. It cannot send, change,
label or delete mail, and has no code that tries to. Once a day it downloads messages
that are not yet in the backup, so that Karl has his own copy of his own mail,
independent of Google.
Where it is kept, and who reads it
Messages are stored as files on Karl's own computer, with a copy on an encrypted disk attached to it. They are not uploaded to any other service. The only software that reads message content is a language model running locally on that same computer, which helps Karl sort and search his own mail. When Karl asks a question about his mail, a short answer drawn from that local model may be shown to him through the AI assistant he uses; whole messages are not sent to it.
What is never done
This data is not sold, rented, shared or disclosed to anyone. There are no partners, advertisers or other users. It is not used for advertising, and it is not used to train any AI model.
Keeping and deleting
It is a backup, so messages are kept until Karl deletes them. Access can be withdrawn at any time from the Google Account permissions page; the backup then stops and nothing further is downloaded.
The website
The public site has no forms, accounts, analytics or advertising. Like most web
servers, it keeps request logs (IP address, time, page requested, browser
user-agent). They stay on the server and are used only to fix problems. The site sets
a theme cookie that remembers light or dark mode, and an
ignore-ga cookie only if you visit the analytics opt-out link. A few
old archived pages still contain a Google Analytics tag, which sends a visit to those
pages to Google under Google's own policy. The apps under /progress and
/karma are private tools for Karl's household, behind a sign-in.
Changes
If what is described here changes, this page is updated to match, and the date at the top shows when.