boot-loader - api - Adam Jurek

Props

Prop	Type	Default	Does
`children?`	`ReactNode`	-	Drawn in the middle, above the counter. A spinning mark, usually.
`duration?`	`number`	`1600`	Roughly how long a full run takes, in milliseconds.
`ready?`	`boolean`	`true`	True once whatever this is waiting for has arrived. The count runs on its own and stalls near the end until this flips. That is the whole design: a progress bar that finishes before the thing it is measuring is a progress bar that lies, and one that only moves when real work reports in sits at zero for two seconds and looks broken.
`onDone?`	`() => void`	-	Called once the counter has reached a hundred and faded.
`label?`	`string`	`"Loading"`	Read out instead of the number, which is meaningless spoken.

Notes

duration only governs the climb to 90 - the run from 90 to 100 once ready flips happens on its own fixed timing, not a fraction of duration. Passing ready={true} from the first render skips the stall entirely and the count runs straight through to 100.

onDone fires once, after the fade beat, and only if the component is still mounted to see ready flip - unmounting it early, by routing away mid-load, means the callback never runs, so nothing that has to happen should depend on it firing.