Memex — a queryable second brain over my messages
I wanted to ask my own data questions like
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Adding email to the Memex (and a Dynamo pagination gotcha)
A few hours after shipping the Memex over iMessage and Signal, I added email. The interesting part wasn't the feature — it was a DynamoDB pagination bug…
Read →Per-day-of-week sleep windows for a safety app
A safety app I run was firing
Read →Five identical schedules, thirteen SMS in ten minutes
09:33 to 09:43 on a Friday morning: thirteen SMS messages, several push notifications, all from my own safety app, all to me. The trigger was five…
Read →Decrypting Signal Desktop's database on macOS
I wanted Signal Desktop's message history available for indexing in my personal search. Signal Desktop stores messages in a SQLCipher database, and the…
Read →Teaching the arrs to skip Russian and very long releases
Sonarr blew up at 3 AM with PathTooLongException thrown across the import queue. The release that triggered it was a translated upload with a…
Read →94% SpO2 is not an emergency
I got a high-severity SMS from my own safety app:
Read →When Sonarr's UI hangs after a restart, blame the WebSocket cache
I'd just restarted Sonarr to recover from an unrelated issue. The service came back up, API requests responded fine, but the web UI in my browser was…
Read →Sonarr was dead because of a Cyrillic filename
Sonarr's web UI was unresponsive. systemd said the service was active (running). The process was using 100% of multiple cores. Load average on the…
Read →Why the sleep-window learner kept collapsing to the wrong four hours
The v1 sleep-window learner for a side-project safety app produced a sleep window of 01:00–05:00 for me. My actual sleep is more like 23:00–07:00. The…
Read →A risk email every fifteen minutes about nothing
The risk-monitor cron on a side project I run was emailing me every 15 minutes with
Read →Replacing a binary threshold cliff with a one-hour ramp
The inactivity-monitor cron on a side-project safety app was paging me at 7:01 AM, every morning, with
Read →PHP loose comparison turned an empty endpoint into a 500
A backend I run was returning 500s on GET /api.php with no endpoint= query param. Should obviously be a 400. Tracking it down landed me on one of those…
Read →Updating a DynamoDB row by the wrong key shape, for a year
A pre-release endpoint sweep on a backend I run turned up two 500s on the check-in respond and snooze endpoints. The cause was old: a composite-key table…
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