Haven, available either on F-Droid or Google Play. Source: about 1 year ago

Haven might be what you are looking for. It can activate sound and video recording upon noise, light and vibration. It is in the IzzyOnDroid Repo or has its own repo. Check the project page: Https://guardianproject.github.io/haven. Source: about 1 year ago

Haven is open source. Last updated 2019, but works. https://guardianproject.github.io/haven/. - Source: Hacker News / over 1 year ago

You could retire it to a personal surveillance camera with haven (needs a sim for registration though). With root, you could even set a charging limit so the battery doesn't die. Source: over 2 years ago

For budget option, you can install Haven on an old phone and it would record/report audio, visual and movement you need to monitor. Source: over 2 years ago

DevHints: DevHints offers a vast collection of cheat sheets for various programming languages, tools, and technologies in a clean and accessible format. - Source: dev.to / 3 months ago

DevHints is your cheat sheet and quick reference repository for various programming languages, frameworks, and tools. It's the perfect resource for quick syntax lookups without the need to dive deep into documentation. - Source: dev.to / 8 months ago

Rico's cheatsheets : A set of good cheatsheets. - Source: dev.to / over 1 year ago

No amount of cheat sheets or reference websites like https://devhints.io/ will help, unless you keep your skillset sharp. Source: over 1 year ago

Devhints.io – for everything else…if it’s not here then it’s probably not available. - Source: dev.to / over 1 year ago