mise API - v0.0.0
    Preparing search index...

    Variable PROC_LANDED_TTL_MSConst

    PROC_LANDED_TTL_MS: number = ...

    How long a feed whose topology just landed stays reported as landed. The prompt is pushed about once a second while the index moves, so a surface that reads every push sees each landing several times and keeps one; a surface that missed a push still sees it on the next.