# Missing Features

Features not yet implemented in the Zig version:

## 1. Language/Localization
- Accept-Language header parsing
- lang query parameter support
- Translation of weather conditions and text (54 languages)

## 2. Json output
- Does not match wttr.in format

## 3. Moon endpoint
- `/Moon` and `/Moon@YYYY-MM-DD` endpoints not yet implemented
- Moon phase calculation is implemented and available in custom format (%m, %M)

## ~~PNG Generation~~
- Render weather reports as PNG images
- Support transparency and custom styling

This was implemented behind a `-Denable-png` build flag and has been removed. It
was slow and memory-intensive (a full font stack plus megabyte-scale buffers per
request), carried its own set of bugs, and saw effectively no use — it did not
justify its maintenance cost or the dependency surface it pulled in (zigimg,
freetype via ghostty, and two embedded font packages).

## ~~Multiple Locations Support~~
- Handle colon-separated locations (e.g., `London:Paris:Berlin`)
- Process and display weather for multiple cities in one request

This is advertised as a feature in wttr.in, but it does not work on the live
site. Given that this would be an unbounded computational risk and a DOS vector,
this is not going to be implemented. That can be done easily through a script,
and it will allow the rate limiting to work better that way