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Discussion on HackerNews and Lobsters. A while ago I was thinking about making something nice for my wife as a present for the Valentine’s Day. My eye caught a rather cool-looking 7-color eInk display with Raspberry Pico W on board - Pimoroni Inky Frame. From the first glance it looked quite polished with ready-to-use SDKs in Python and C++. I thought it would be interesting to make a dynamic family photo frame out of it, something that my wife could have on her table, with ability to switch photos from time to time with a press of a button.

TL;DR Architecting an application with a pure function at it’s core can be a first step towards the “functional-core imperative shell” ideal which can simplify testing and lower an applications complexity bar.