What is the difference between twtxt-php and timeline from sorenpeter?

twtxt-php is a minimalistic client based on another PHP project, you can see it on https://eapl.mx/twtxt
timeline is a better-looking Web app, with support for markdown, images gallery... you can see it here http://darch.dk/timeline/

twtxt-php is not actively developed, its core was merged into timeline

Does it have a way to follow feeds from the web ui?

Yes, but you have to be logged in. Currently can only add URLs, not edit or unfollow.

I was looking at it and what prevents someone from downloading the .config file and getting the password?

An .htaccess file

Also how would I generate a totp password to use?

That part is missing on the Web side, there is a commented PHP code to do that
https://github.com/eapl-gemugami/twtxt-php/blob/master/libs/TOTP.php#L121

Although you can find a better TOTP onboarding on https://fit.eapl.me

[...] my server logs it shows that your site pulled in the useragent as https://eapl.me/twtxt/?url=https%3A//neotxt.dk/user/darch/twtxt.txt with bytesypider from bytedance?

Didn't know of bytesypider and bytedance, I assume those are bots, although I no idea why they are pointing to that address to your site
https://wordpress.org/support/topic/psa-bytedance-and-bytespider-bots-recommend-blocking/

twtxt-php isn't sending User-Agent headers as it's in the original spec:
https://twtxt.readthedocs.io/en/latest/user/discoverability.html
Or the discussion there:
https://github.com/buckket/twtxt/issues/109

I think it could be easy to implement 🤔

Since relying on HTTP logs could be inconvenient on some servers, there were ideas of using WebMention or some HTTP endpoint to inform who's following your URL (like on Gemini Antenna).

From what I've read, timeline and yarn has experimental support for Webmention. Could @prologic or @darch share some insights on that?