Do we need language-filtered feeds?
I've added language detection to our relay and here are convenient filtered feeds: wss://feeds.nostr.band/lang/{LANG_CODE}
Try /lang/ru or /lang/de etc.
A good app to play with relays is Nostrrr: https://nostrrr.com/relay/nrelay1qq08wumn8ghj7en9v4j8xtnwdaehgu3wvfskuep0d3skuee0dfssy3jex8
You can also try sending custom filters to relay.nostr.band like {"kinds":[1],"@lang":["de","ja"]} - there is no NIP for this, but if there is some demand for such stuff we could come up with one.
The detector is CLD2 which isn't too accurate, but extremely fast.
Supported languages and their codes:
AFRIKAANS af
ALBANIAN sq
ARABIC ar
AZERBAIJANI az
BASQUE eu
BELARUSIAN be
BENGALI bn
BIHARI bh
BOSNIAN bs
BULGARIAN bg
CATALAN ca
CEBUANO ceb
CROATIAN hr
CZECH cs
Chinese zh
ChineseT zh-Hant
DANISH da
DUTCH nl
ENGLISH en
ESTONIAN et
FINNISH fi
FRENCH fr
GALICIAN gl
GANDA lg
GERMAN de
GREEK el
HAITIAN_CREOLE ht
HAUSA ha
HEBREW iw
HINDI hi
HMONG hmn
HUNGARIAN hu
ICELANDIC is
IGBO ig
INDONESIAN id
IRISH ga
ITALIAN it
JAVANESE jw
Japanese ja
KINYARWANDA rw
Korean ko
LATVIAN lv
LITHUANIAN lt
MACEDONIAN mk
MALAY ms
MALTESE mt
MARATHI mr
NEPALI ne
NORWEGIAN no
PERSIAN fa
POLISH pl
PORTUGUESE pt
ROMANIAN ro
ROMANIAN ro
RUSSIAN ru
SCOTS_GAELIC gd
SERBIAN sr
SERBIAN sr
SLOVAK sk
SLOVENIAN sl
SOMALI so
SPANISH es
SWAHILI sw
SWEDISH sv
TAGALOG tl
THAI th
TURKISH tr
UKRAINIAN uk
URDU ur
VIETNAMESE vi
WELSH cy
YIDDISH yi
YORUBA yo
ZULU zu
