Read UIAppearance seems not to be that simple. UI_APPEARANCE_SELECTOR - I have never ever met such a beast.

Read Architecture of networking core in iOS app.

Passed over Face Recognition with OpenCV just because accidentally found it was written by Engin Kurutepe from UIKonf.

Watched UIKonf 2019 talk Advanced Colors in iOS by Neha Kulkarni.

Watched UIKonf 2019 talk Promises in iOS by Anne Cahalan.

  • Future is readonly placeholder for unknown future value.
  • Promise is writable single assignment container.

Watched very interesting UIKonf 2019 talk Muse Prototype Challenges by Julia Roggatz. Nice work! A little bet more information here.