You could solve that by using a public calendar where you just block parts of your time for concentrated work and let people know about it. Obviously that depen

You could solve that by using a public calendar where you just block parts of your time for concentrated work and let people know about it. Obviously that depends on a more explicit agreement. In offices, it's often more implicit, via "headphone plugged in" etc, but it's a good idea to find a form of expression for that in remote environments as well.