# vibes — small, single-purpose web tools

> A handful of standalone browser tools at https://vibes.obel.dev. No accounts, no tracking, no server: every one is a static page that computes in the browser. Two of them are financial calculators whose entire input set is encoded in the URL query string, so you can hand someone a link that opens with their scenario already filled in.

## Calculators with a URL API

Each of these has its own complete parameter reference. Read the one for the
tool you're using — the short parameter names are not shared between them, and
several mean different things in each.

- [Rent or buy](https://vibes.obel.dev/rent-or-buy/): should you buy a home or rent and
  invest the difference? Spec: https://vibes.obel.dev/rent-or-buy/llms.txt
- [Build or invest](https://vibes.obel.dev/build-or-invest/): should a lump sum become an
  apartment block or compound in the market? Spec: https://vibes.obel.dev/build-or-invest/llms.txt

## Other tools

- [Passport photo printer](https://vibes.obel.dev/passport-photo-printer/): crops a photo to
  passport dimensions and lays it out for printing. No URL parameters — it works
  on an uploaded image.

## Notes

- Both calculators default to Kenyan figures, but nothing is hardcoded to Kenya.
  Every tax, rate and transaction cost is an input, so set them for whatever
  market your reader is actually in.
- They are models, not advice. Growth rates are steady averages; real ones arrive
  in lumps.
- Source: https://github.com/nyabongo/vibes