Notepadqq is a notepad++ alternative/port for Linux.

It can be installed using:

apt-get install notepadqq

Mint 22 / Ubuntu 24.04:

sudo apt-get install qtbase5-dev qtchooser qt5-qmake qttools5-dev-tools qtwebengine5-dev libqt5websockets5-dev libqt5svg5 libqt5svg5-dev libuchardet-dev pkg-config

git clone --recursive https://github.com/notepadqq/notepadqq.git
cd notepadqq
./configure --prefix /usr
make
sudo make install