The blog: https://dlang.org/blog/2020/06/25/a-pattern-for-head-mutable-structures/
Reddit: https://www.reddit.com/r/programming/comments/hfkq5e/a_pattern_for_headmutable_structures_in_d/ I've also submitted it to HN (please use the search box): https://news.ycombinator.com/newest