# TODO List

- Improvement of path matcher
- More flexible option for rewriting path
- Smaller footprint of docker image using musl
- Refactoring
- Options to serve custom http_error page.
- Prometheus metrics
- Documentation
- Client certificate
  - support intermediate certificate. Currently, only supports client certificates directly signed by root CA.
  - Currently, we took the following approach (caveats)
    - For Http2 and 1.1, prepare `rustls::ServerConfig` for each domain name and hence client CA cert is set for each one.
    - For Http3, use aggregated `rustls::ServerConfig` for multiple domain names except for ones requiring client-auth. So, if a domain name is set with client authentication, http3 doesn't work for the domain.
- etc.