First impressions of the hare programming language.
Pros -
* Extremely fast/easy bootstrap
* Easy to get started
* Nice documentation system
* Tagged unions out of the box
* Better error handling than C
* No uninitialized variables
* bounds checked arrays/slices
* Consistent syntax
* Doesn't require linking libc
Seems very much like a "better C" type language. Not much mental overhead, in fact simpler even than Zig. It very well may be missing features you want, but definitely interesting.