avg delta is signed, so overruns and underruns cancel — it measures bias (closer to zero is better). avg miss averages the absolute error, so nothing cancels — it measures accuracy. brier score squares each error, so one big blowout costs more than several small misses (lower is better).
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Settings
Appearance
Data
Report
Yearly report: the full graph, hoverable, with summary stats. The link holds that year's data compressed in the URL itself — nothing is uploaded, but anyone with the link can see the tasks in it.
Notifications
Running timer on lock screen
Alert when estimate is reached
One silent notification per timer, showing the task, its estimate and when it's due. Tap it to reopen Meridian; on Android it also has Stop and Pause buttons. The estimate alert fires while Meridian is open or in the background — iPhone suspends it once locked. On iPhone, add Meridian to the Home Screen first.
Slack
Post completed tasks
Auto-send daily summary
Send at
Posts go to the channel this webhook is bound to — pick the channel when creating the webhook (Slack → your app → Incoming Webhooks). The URL is stored only on this device.