I have a 3L Erlenmeyer flask, sometimes I build a 2L , sometimes 1.5L.
I always use DME and a pinch of yeast nutrient.
I have a stirplate, and keep it at ambient temp of 18-22 C.
I use dry yeast a lot. But that only gives me part of the styles I want to brew.
I make IPAs, NEIPAs, Porters, ESBs...