Polymorph: Queryless ECS in Nim (Nimconf2022 Video)

While popular with game developers (as clear in this talk), the "automatic abstraction transpose" to struct of arrays (SOA) from array of structs (AOS) of ECS or "data-oriented" programming has more broadly interesting qualities.

As any row/column database devs will tell you, performance-wise, it is often a matter of "scales & commonality". If you always want two fields at the same time, one cache miss or IO is better than two. Ultimate performance in a scale/context general sense and purity/simplicity are ever at odds. Ah well.