my filters

! Title: Hide YouTube Shorts
! Description: Hide all traces of YouTube shorts videos on YouTube
! Version: 1.8.0
! Last modified: 2023-01-08 20:02
! Expires: 2 weeks (update frequency)
! Homepage: https://github.com/gijsdev/ublock-hide-yt-shorts
! License: https://github.com/gijsdev/ublock-hide-yt-shorts/blob/master/LICENSE.md

! Hide all videos containing the phrase "#shorts"
youtube.com##ytd-grid-video-renderer:has(#video-title:has-text(#shorts))
youtube.com##ytd-grid-video-renderer:has(#video-title:has-text(#Shorts))
youtube.com##ytd-grid-video-renderer:has(#video-title:has-text(#short))
youtube.com##ytd-grid-video-renderer:has(#video-title:has-text(#Short))

! Hide all videos with the shorts indicator on the thumbnail
youtube.com##ytd-grid-video-renderer:has([overlay-style="SHORTS"])
youtube.com##ytd-rich-item-renderer:has([overlay-style="SHORTS"])
youtube.com##ytd-video-renderer:has([overlay-style="SHORTS"])
youtube.com##ytd-item-section-renderer.ytd-section-list-renderer[page-subtype="subscriptions"]:has(ytd-video-renderer:has([overlay-style="SHORTS"]))

! Hide shorts button in sidebar
youtube.com##ytd-guide-entry-renderer:has-text(Shorts)
youtube.com##ytd-mini-guide-entry-renderer:has-text(Shorts)

! Hide shorts section on homepage
youtube.com##ytd-rich-section-renderer:has(#rich-shelf-header:has-text(Shorts))
youtube.com##ytd-reel-shelf-renderer:has(.ytd-reel-shelf-renderer:has-text(Shorts))

! Hide shorts tab on channel pages
! Old style
youtube.com##tp-yt-paper-tab:has(.tp-yt-paper-tab:has-text(Shorts))
! New style (2023-10)
youtube.com##yt-tab-shape:has-text(/^Shorts$/)

! Hide shorts in video descriptions
youtube.com##ytd-reel-shelf-renderer.ytd-structured-description-content-renderer:has-text("Shorts remixing this video")

! Remove empty spaces in grid
youtube.com##ytd-rich-grid-row,#contents.ytd-rich-grid-row:style(display: contents !important)

!!! MOBILE !!!

! Hide all videos in home feed containing the phrase "#shorts"
m.youtube.com##ytm-rich-item-renderer:has(#video-title:has-text(#shorts))
m.youtube.com##ytm-rich-item-renderer:has(#video-title:has-text(#Shorts))
m.youtube.com##ytm-rich-item-renderer:has(#video-title:has-text(#short))
m.youtube.com##ytm-rich-item-renderer:has(#video-title:has-text(#Short))

! Hide all videos in subscription feed containing the phrase "#shorts"
m.youtube.com##ytm-item-section-renderer:has(#video-title:has-text(#shorts))
m.youtube.com##ytm-item-section-renderer:has(#video-title:has-text(#Shorts))
m.youtube.com##ytm-item-section-renderer:has(#video-title:has-text(#short))
m.youtube.com##ytm-item-section-renderer:has(#video-title:has-text(#Short))

! Hide shorts button in the bottom navigation bar
m.youtube.com##ytm-pivot-bar-item-renderer:has(.pivot-shorts)

! Hide all videos with the shorts indicator on the thumbnail
m.youtube.com##ytm-video-with-context-renderer:has([data-style="SHORTS"])

! Hide shorts sections
m.youtube.com##ytm-rich-section-renderer:has(ytm-reel-shelf-renderer:has(.reel-shelf-title-wrapper:has-text(Shorts)))
m.youtube.com##ytm-reel-shelf-renderer.item:has(.reel-shelf-title-wrapper:has-text(Shorts))

! Hide shorts tab on channel pages
m.youtube.com##.single-column-browse-results-tabs>a:has-text(Shorts)

The issue only supplies uBlock filter rules for YouTube and mobile YouTube; it names no file, test, or entry point. First inspect the Astro website structure to determine whether filter lists are supported, then clarify where these rules should be added and what successful integration would look like.