Android private space: How to install apps from other sources

* "NoteAfterNote-8, 'Smartphone-1 to Smartphone-2: "adb tcpip 5555" using a Linux server, android-tools, Termux, termux-usb, usbredirect, and QEMU'": https://gist.github.com/NoteAfterNote/ee883d5fd86c3b8ef0b0b8... (gist.github.com/NoteAfterNote/ee883d5fd86c3b8ef0b0b84cac47b4d6) via https://gist.github.com/NoteAfterNote/7614b0137ac6959e3bba35... (NoteAfterNote, "Testing: Termux, vmtest, and QEMU", NoteAfterNote-10, "Published: June 19, 2024", "Updated: November 22, 2024", gist.github.com/NoteAfterNote/7614b0137ac6959e3bba35df66eaa75a)

* "Motorola moto g play 2024 smartphone running the Android 14 operating system: Boot times for Alpine Linux version 3.21.2-x86_64 using Termux application version 0.119.0-beta.1 and QEMU running under Termux": https://old.reddit.com/r/MotoG/comments/1hzbwe9/motorola_mot... (old.reddit.com/r/MotoG/comments/1hzbwe9/motorola_moto_g_play_2024_smartphone_running_the/)