All fonts used in examples are provided under a free and permissive license.
Check individual licenses for details:

 - [Alpha Beta] by Brian Kent (AEnigma) - https://www.dafont.com/es/alpha-beta.font
 - [Setback] by Brian Kent (AEnigma) - https://www.dafont.com/es/setback.font
 - [Jupiter Crash] by Brian Kent (AEnigma) - https://www.dafont.com/es/jupiter-crash.font
 - [Alagard] by Hewett Tsoi - https://www.dafont.com/es/alagard.font
 - [Romulus] by Hewett Tsoi - https://www.dafont.com/es/romulus.font
 - [Mecha] by Captain Falcon - https://www.dafont.com/es/mecha-cf.font
 - [PixelPlay] by Aleksander Shevchuk - https://www.dafont.com/es/pixelplay.font
 - [PixAntiqua] by Gerhard Großmann - https://www.dafont.com/es/pixantiqua.font
 - [Kaiserzeit Gotisch] by Dieter Steffmann - https://www.dafont.com/es/kaiserzeit-gotisch.font
 - [Noto CJK] by Google Fonts - https://www.google.com/get/noto/help/cjk/
 - [Anonymous Pro] by Mark Simonson - https://fonts.google.com/specimen/Anonymous+Pro
 - [DejaVu] by DejaVu Fonts - https://dejavu-fonts.github.io/
 - [Symbola] by George Douros - https://fontlibrary.org/en/font/symbola