Scarica la chiave GPG di sicurezza:

mkdir -p -m 755 /etc/apt/keyrings
wget -O- https://download.onlyoffice.com/GPG-KEY-ONLYOFFICE | gpg --dearmor | sudo tee /etc/apt/keyrings/onlyoffice.gpg > /dev/null

Aggiungi il repository all’elenco delle sorgenti:

echo "deb [signed-by=/etc/apt/keyrings/onlyoffice.gpg] https://download.onlyoffice.com/repo/debian squeeze main" | sudo tee /etc/apt/sources.list.d/onlyoffice.list

Aggiorna l’indice ed esegui l’installazione:

sudo apt update
sudo apt install onlyoffice-desktopeditors

Rimuovere LibreOffice:

sudo apt purge "libreoffice*"
sudo apt autoremove --purge
sudo apt clean
rm -rf ~/.config/libreoffice