- should permanent redirects update the feed somehow?
- [ ] Support time ranges (i.e. reading the timeline between given time points)
- [ ] Implement rfc3339->epoch and remove dependency on rfc3339-old
-- [ ] remove dependency on http-client
+- [x] remove dependency on http-client
- [ ] optional text wrap
- [ ] write
- [x] caching (use cache by default, unless explicitly asked for update)