@pmdj @vaurora I never have been a paid OpenSource maintainer, but my previous Company did consulting. The prefered way of work+pay with the client was "Time&Material", so the client get at the end of a month the bill for our invested time and material (mostly traveling). Most teams at the client also prefered this, but the But often the purchasing department didn't like it, and we had to sell artificial deliveries, which roughly fitted into our monthly expenditure in terms of time.