feat: Small improvements (#2094)

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> [!NOTE]
> Add `youtube-dl` to the open-source projects list in
`sources/academy/build-and-publish/actor-ideas/what_software_an_actor_can_be.md`.
> 
> <sup>Written by [Cursor
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Author: jancurn

sources/academy/build-and-publish/actor-ideas/what_software_an_actor_can_be.md

@@ -72,6 +72,7 @@ or the following list:
 
 - https://github.com/bytedance/Dolphin
 - https://github.com/google/langextract
+- https://github.com/ytdl-org/youtube-dl
 - https://github.com/virattt/ai-hedge-fund
 - https://github.com/jamesturk/scrapeghost/
 - https://github.com/idosal/git-mcp