Not a redis guy, but I worked on MySQL for quite a long time. the interesting part in KubeBlocks, in my point of view, is they wrap engine-specific differences in 'Addon' . And I checked their impl for MySQL Addon.

I like their idea on hwo to modeling datebase topologies and behaviors. for instence, parameter configurations. seems they have tuned parameters for MySQL replication clusters (e.g. they render parameters w.r.t resources)