Yah ppl don't focus enough on bet sizing.

I usually choose my bet sizing in 3b pots for three streets by betting:
Flop: 1/10th of remaining effective stacks (this will often result in a somewhat smallish bet)
Turn: 1/4 of remaining effective stacks
River: Shove what is left, which will usually be like 2/3rd to 3/4 of pot or so.

So in this spot:
Flop - pot is 0.77. Effective stack remaining is $2.80. Bet 0.28.
Turn - pot is 1.33. Effective stacks remaining is $2.52. Bet 0.63.
River - pot is 2.59. Shove remaining effective stack of 1.89.