The best alternatives to PracticeLinux are Codecademy, Gophercises, and Talentbuddy. If these 3 options don't work for you, we've listed a few more alternatives below.
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AssemblyAI— Speech-to-Text API with superhuman accuracy
Codecademy, from Skillsoft, helps millions of learners create inspiring careers in technology through an interactive online platform and a growing catalog of courses, skill paths, and career paths.
A wise (wo)man once said: "One LeetCode problem a day keeps unemployment away". If you wish to practice coding problems for job interviews; or just simply like solving puzzles in form of coding - this app is your buddy.