The Work Gym from Ultraworking is a technique for working more effectively. It has two pillars: social accountability and optimizing the mechanics of the work itself.
Social accountability is achieved by joining a Zoom call with a group of others who are committed to completing a focused work session. Everyone else will see if you get up from your desk for an unscheduled break, which is embarrassing. But looked at more positively, it is easy and maybe fun to work alongside others and support each other.