Before delving into Mixxx, ask yourself what you want to do with music. DJing is the art of mixing together music that has already been recorded; making original music is producing.

• If you want to DJ, you are in the right place!
• If you want make your own original music from start to finish, Mixxx is not the right tool for the job. Music production is done with a type program called a digital audio workstation (DAW), such as Ardour or LMMS, rather than a DJ program.

• Mixxx DJ Hardware Guide
• Broadcasting and recording with OBS
• Mixxx Manual
• Setting Your Levels Properly (Gain Staging)

• DJ TLM's YouTube channel
• DJ Tech Tools
• Digital DJ Tips
• Reddit /r/beatmatch and /r/DJs

• How it works: Linux audio explained: explains the relationships between ALSA, OSS, FFADO, JACK, PulseAudio, GStreamer, Phonon, and Xine
• Jack vs Pulseaudio

• Understanding the Windows Sound System: explains the differences between ASIO, WASAPI, WDM KS, DirectSound, and MME