------------
### requirements
+
+#### manual
[Racket](https://download.racket-lang.org/)
+#### package manager
+- Void Linux: `xbps-install racket`
+- Debian: `apt install racket`
+
### installation
-`make build && make install` will build and copy `tt` binary into `$PREFIX/bin`.
+`make build && make install` will build and copy `tt` binary into
+`$PREFIX/bin`, where `$PREFIX` defaults to `$HOME`.
+
+### configuration
+Put your `<nick>` and `<uri>` into `~/.tt/me`. For example, mine is:
+
+```
+$ cat ~/.tt/me
+xandkar https://xandkar.net/twtxt.txt
+```
+It will be used to fill the `User-Agent` header, so that others can tell you're
+reading their twtxts and perhaps read yours. This isn't strictly necessary and
+if omitted, you'll stay anonymous.
### usage
Download feeds from the Internet:
-`tt d (FOLLOW-FILE)`
+`tt d [FOLLOW-FILE ... ]`
Read your timeline:
-`tt r (FOLLOW-FILE)`
+`tt r [FOLLOW-FILE ... ]`
+
+`FOLLOW-FILE` contains lines with space-separated nick and twtxt.txt URI, like:
+
+```
+xandkar https://xandkar.net/twtxt.txt
+```
+
+If omitted, `FOLLOW-FILE` defaults to `~/.tt/peers`.
See the rest of the usage options:
`tt -h`
-----
### LWW downloads
-Downloaded timelines are stored in `~/.tt/cache/<SHA1_OF_URI>`, but no attempt
-is made to preserve the previously-downloaded messages - each download
-overrites the previous. One of the implications is that authors can edit/delete
-history without you noticing.
+Downloaded timelines are stored in `~/.tt/cache/objects/<URL_ENCODED_URL>`, but
+no attempt is made to preserve the previously-downloaded messages - each
+download overrites the previous. One of the implications is that authors can
+edit/delete history without you noticing.