gncdu implements NCurses Disk Usage(ncdu) with golang, and is at leaset twice faster as ncdu.
macOS (Apple Silicon)
wget -O https://github.com/bastengao/gncdu/releases/download/v0.7.0/gncdu-darwin-arm64 && chmod +x /usr/local/bin/gncdu
Linux (amd64)
wget -O /usr/local/bin/gncdu https://github.com/bastengao/gncdu/releases/download/v0.7.0/gncdu-linux-amd64 && chmod +x /usr/local/bin/gncdu
Or download executable file from releases page.
go install github.com/bastengao/gncdu@latest
gncdu [path]