jekor
3 HN recommenders · recommended in 3 months, 2014–2021
16:04 · 57K views · Apr 24, 2013
The first episode of a screencast series building djb's redo build system from scratch in Haskell. It explains the purpose of redo, writes initial code and sets up a GitHub repository.
Recommended to Haskell learners as a rare example of building a real program step by step beyond toy examples.
3 comments from Hacker News
I haven't ever done anything too significant in Haskell, but the Jekor Redo [1] videos are fantastic, and demonstrate the slow building up of more complicated things than "reverse this string." I haven't watched his xmonad [2] or pandoc [3] videos yet, but I would bet that they are highly worthwhile as well. - 1: this video - 2: [LINK] - 3: [LINK]
There's definitely a stage when you want to graduate from bottom-up tinkering & learning the underlying concepts to making things -- this is where I feel there's a big gap in the haskell materials right now. There's some great screncasts though which have been helpful. [LINK] - Implement a sed clone in Haskell (a bit broken towards the end but a great look at a small incremental project) this video - implementing redo in Haskell
Chris Forno (jekor) made an implementation of djb's redo in Haskell. The videos of him live coding it are on YouTube, and I recommended it for anyone wanting to learn Haskell. this video