To start with the first prototype I went with breakout boards for the chips, it's a bit botched, but fits. It was a bit tricky to find pin one on the TPS22917, but with the help of Alex I was able to decide on the right pin *hopefully*. On the left side is an HT7333 - I was thinking about using the AP2112K first, but the lower quiescent current of the HT7333 and general current consumption needs of the Attiny brought me to the holtek chip instead.