How do I get category or user post RSS feeds?

[pufuletz]

I know this link generates an RSS feed of all bitcointalk posts:
 - http://bitcointalk.org/index.php?type=rss;action=.xml&limit=20

But How do I link to a feed of
--Altcoin Announcement category posts only?
--Altcoin Discussion category posts only
--a particular user profile's posts only?

[pufuletz]

I know this link generates an RSS feed of all bitcointalk posts:
 - http://bitcointalk.org/index.php?type=rss;action=.xml&limit=20

But How do I link to a feed of
--Altcoin Announcement category posts only?
--Altcoin Discussion category posts only
--a particular user profile's posts only?

Hello?

[Vod]

https://bitcointalk.org/index.php?board=67.0&type=rss;action=.xml&limit=20

works fine.  Simply insert the board number you want.

I don't think there is anyway to do categories of boards, but I only researched for 10 seconds.