Block the apps that fragment your attention for the length of a focus block. The hardest part of knowledge work is staying with one thing long enough to do it well, and that is exactly what a locked session protects.
You still get to your phone if a real work emergency comes up. Unlocking early takes a deliberate hold, enough of a pause to separate "I need this for the job" from "I am avoiding the hard task."
Lock In logs every focus session automatically, so you get real numbers on your focused hours, your peak times, and your streak. No spreadsheet, no manual timer, just a clear picture of your week.
Start a group session for a heads-down sprint so the whole team can see who is locked in. Shared focus time beats a calendar block nobody respects, even when everyone is remote.