I built a PowerToys Quick Accent alternative for Linux

Three years ago I switched from Windows to Arch Linux. The one Windows feature I actually missed was PowerToys Quick Accent — hold a letter, tap space, get the accent. The Linux alternatives didn't fit. I touch type, so anything that breaks rhythm hurts: Compose key — three keystrokes per character. Slow. Dead keys — require a keyboard layout change. Clipboard-based tools — overwrite the clipboard. Dead on arrival if you copy code. So I built schnelle-umlaute — a Fcitx5 input method addon. Hold