Ask HN: What high-effort, high-reward skills have you developed in 2025?
It would be interesting to hear what current tech skills have a steep learning curve but pay off a lot afterward.
Some examples (not sure they're the best ones, but just to illustrate):
1. Vim motions
2. Rust
3. Jujutsu (as an alternative to Git)
4. Formal methods in software engineering (Alloy, TLA+)
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