GitHub and TikTok: Simple Icons contributors, CC0 1.0.
https://simpleicons.org/
https://creativecommons.org/publicdomain/zero/1.0/
Brand trademarks belong to their respective owners. Icons recolored #0d0d0e.

Chess knight: Skoll, Game-icons.net, CC BY 3.0. Recolored white.
https://game-icons.net/1x1/skoll/chess-knight.html
https://creativecommons.org/licenses/by/3.0/
Retrieved through Iconify. No geometry changes.