https://download.calibre-ebook.com/
apt install pkg-config uchardet python3-pkgconfig qmake6 python3-stemmer libpodofo-dev libhunspell-dev libxft-dev libpango1.0-dev libfreetype-dev libuchardet-dev libhyphen-dev libsqlite3-dev libstemmer-dev
python3 setup.py build
python3 setup.py install