How I Converted My Qt6 C++ App Into a .deb Package 📦 on Linux Mint

How I Converted My Qt6 C++ App Into a .deb Package 📦 on Linux Mint

Want to package your Qt6 C++ application into a professional .deb installer for Linux Mint? In this video I walk through my exact workflow building the app, gathering runtime files, creating a Debian control file, generating the .deb, and testing installation. Perfect for developers who want a clean repeatable deployment for Linux users.

Timestamps:
0:00 Intro Why .deb
0:20 Project overview
0:50 Build Qt6 app qmake or CMake
2:10 Collect runtime libraries and files
3:00 Build .deb with dpkg-deb
4:10 Testing and installing on Linux Mint

What I cover:
Building with CMake Qt6 and producing binaries
Identifying required Qt runtime libraries
Creating Debian package structure including DEBIAN usr bin usr share applications
Writing control file with package name version dependencies
Adding desktop entry and icons for menu integration
Building .deb with dpkg-deb and checking with lintian
Installing and removing package with dpkg and apt
Tips for packaging on Linux Mint and common mistakes

Key commands:

Build:
mkdir build
cd build
cmake ..
make

Source Code: https://github.com/mubashir1837/CPPWheatherInformationApp
Release URL: https://github.com/mubashir1837/CPPWheatherInformationApp/releases/tag/v1.0.0

Package structure:
mkdir -p myapp/DEBIAN myapp/usr/bin myapp/usr/share/applications myapp/usr/share/icons/hicolor/128x128/apps
Control file:
echo "Package: myapp
Version: 1.0.0
Section: utils
Priority: optional
Architecture: amd64
Depends: libqt6core6 libqt6gui6 libqt6widgets6
Maintainer: Your Name you@example.com

Description: Short description of app" myapp/DEBIAN/control

Build:
dpkg-deb --build myapp

Install:
sudo dpkg -i myapp.deb
sudo apt-get -f install

Lint:
lintian myapp.deb

Resources:
https://www.debian.org/doc/manuals/maint-guide/
https://doc.qt.io
https://lintian.debian.org

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