Ecosystem

A small ecosystem implies there aren't many people writing in the language, meaning fewer people to engage in discussion and fewer examples to follow. In contrast, there are plenty of people talking about widely adopted languages, but more people often means more misinformation within larger ecosystems.

Rust

Used for websites video games desktop apps hardware embedded software

medium barrier to entry

medium demand

high pay

hard to find help

Visit Rust

Swift

Used for mobile apps desktop apps

medium barrier to entry

medium-high demand

medium-high pay

medium to find help

Visit Swift