
I built a timesheet that writes itself and can't be quietly rewritten
Nobody likes writing timesheets. And a timesheet you write yourself proves nothing when a client doubts it.
So I built tenby10. A small macOS app records that you were present and working, in 10 minute slots. Window titles stay on your machine. Keystrokes are counted, never read. There are no screenshots. Not blurred ones. None. The code has no capture path at all.
If you connect your own AI key, it writes a short note each day about what you worked on. Every slot and every note is signed on your machine at the time and chained into a tamper-evident ledger. Your client opens one link and follows the work week by week. When the invoice arrives, nothing on it is new information.
Site: https://tenby10.pivotalpoint.io What a client sees: https://tenby10.pivotalpoint.io/verified/sample
The client app is source-available (PPSAL-1.0). An auditor's guide maps every privacy claim to file and line. Free during the beta. Around $9 a month expected after, and the app itself stays free.
If you bill hourly, try it on one real invoice and tell me where it falls short. I will do the hand holding. And tell me what would make you distrust the link. That is the answer I need most.