Reading lately so much about retrocomputing made me want to get back to some simple coding, like back in the times where figuring out a 30 line BASIC program was an achievement. So a week ago I downloaded a free Ada introduction book and started to "work" through it.

Yesterday morning I finished with it and set me a little challenge: Started to implement Playfair with only the wikipedia article as a base. Despite having guests for lunch AND dinner, at night at 1AM I had a basic POC together that encrypted the example message correctly.