I made a financial planning tool in a couple hours that can model various stages of life and potentially guide job searching and work timelines.
Source: [Hacker News](https://github.com/karmanyaahm/budget-tools/tree/main/fire)
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Extract one mutator only after tests pin object identity. Value equality alone hides alias bugs in shared containers. A copied list can match every item and still break a later caller.
No Python. No Node. Just Bash and jq.