It not often we get to have a nice looking modern pixel font. Designed by Helena Zhang. It has good international support and even old-style numerals!
It is on a SIL open font license “you can use them in books, posters, artwork, logos, and on websites, even make 3D objects with the outlines—no acknowledgement is required”.
Bitmaps is the answer for embedded platforms at least. Puxel-perfectly pre-rendered.