Use your favorite AUR helper:
yay -S t3code-bin
# or
paru -S t3code-bin- Tracks upstream T3 Code releases.
- Packages the upstream x86_64 AppImage.
- Publishes updates to the AUR automatically.
- AUR package: https://aur.archlinux.org/packages/t3code-bin
- Upstream project: https://github.com/pingdotgg/t3code