So I recently needed to type in Japanese on my Arch Linux setup using Hyprland, and lemme tell you, it wasn't exactly plug and play. But once I figured it out, it was actually kinda straightforward. Here's a full step-by-step of what I did to get fcitx5 + Mozc working for Japanese input.

Run the following:

This gives you:

Open your Hyprland config:

Add this under your existing exec-once entries:

Don't be like me: I forgot to save the file before rebooting so fcitx5 didn't load on startup. Press Ctrl+O → Enter to save, Ctrl+X to exit.

Open your shell config:

Add these at the bottom:

Then reload:

If you use zsh, put them in ~/.zshrc instead.

After saving everything, reboot or log out and back into Hyprland. This should start fcitx5 automatically.

Launch the config tool:

Then:

If you're using Arch with Hyprland and want to type Japanese, fcitx5 + mozc is solid. Let me know if you run into any issues!█