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Vitor Pamplona | 1 months ago (raw) | root | parent | reply | flag 
 Do you use an event kind to specify the feed like that?
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reya | 1 months ago (raw) | root | parent | reply | flag 
 Ah, I'm not use event kind for that. Each newsfeed define by user's contact list (default) or their follow/interest sets (NIP51). Lume just show its all into a single screen, and save the state when user close app into the local database, maybe save it into relay too with NIP78.
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Vitor Pamplona | 1 months ago (raw) | root | parent | reply | flag 
 So, I am going to start defining some type of Custom Feed event type. 

nostr:nprofile1qqsf03c2gsmx5ef4c9zmxvlew04gdh7u94afnknp33qvv3c94kvwxgspz3mhxue69uhhyetvv9ujuerpd46hxtnfduq35amnwvaz7tmjv4kxz7fwwajhxar9wfhxyarr9e3k7mgprdmhxue69uhksmmyd33x7epwvdhhyctrd3jjuar0dak8x6lmt90 has his version below, but I find it too complicated with the union/diff/intersection stuff. 

This is complicated by definition, but it would be nice to have a feed defined in Lume showing up on Amethyst. 

https://github.com/nostr-protocol/nips/pull/1181/files
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mleku | 1 months ago (raw) | root | parent | reply | flag 
 as good a time as any to learn how to implement set operations

in Go i do them with for/range iterations and maps (which require mutexes because of concurrency)...

to be honest, a lot of C++ and other OOP programmers (java, rust) overemphasise the use of map/reduce operations, which are essentially set operations, but in my experience i need maybe one or two in a whole application and often this allows very specific implementations
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reya | 1 months ago (raw) | root | parent | reply | flag +1 
 Oh I will check it
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Vitor Pamplona | 1 months ago (raw) | root | parent | reply | flag 
 We should find a good way to do it.