To get crazy fast in the command line, try Command Line Challenge, practicelinux.com, learnshell.org and commandlinefu.com. Source: 8 months ago

I put something together very similar to this, https://cmdchallenge.com that I like a bit better because it has console input. There is also a Christmas edition "12 days of shell" https://12days.cmdchallenge.com that is more like a learning progression. - Source: Hacker News / 8 months ago

Nice to see this posted on HN! A while back ago I used them for the design of a site a built https://cmdchallenge.com/ which gives it a nice feel of achievement badges without using standard unicode characters that may look different depending on the client. - Source: Hacker News / 10 months ago

Cmd challenge is a website that gives you a linux terminal, and asks you to perform different tasks on it, so you sharpen your linux terminal skills. - Source: dev.to / over 1 year ago

Aye that's a good one. CmdChallenge is also quite nice. Source: almost 2 years ago

If you are on Android Blocksite can help you not waste time scrolling. Actuflow is on both IOS and Android and allows you to set an intention when you open your device. Source: over 2 years ago

Working on a side project after my main tech job. An app that should help to use mobile devices more focused and purposeful. App simply prompts users to type an intention before using the device(Android), certain apps(iOS). I'm making it privacy-focused, no analytics, no sign-ups. At first, I solved my issues with phone usage and now I'm trying to make the app easier to use and I focus on users feedback to improve... - Source: Hacker News / over 2 years ago

And back to your comment. I try to share the idea of using social media apps intentionally and created an app for tracking usage intentions. If you are interested check the app https://acture.app. Source: almost 3 years ago

I would be thankful for share and for feedback in App Store Get app -> https://acture.app. Source: almost 3 years ago