Build a tool to help software engineers understand and generate crontab expressions. ...

Curl is a command like tool for transferring data with URLs - for the sake of this challenge though we’re going to focus on it’s use as a tool for sending HTTP requests. As such it’s often used to test or demonstrate RESTful APIs. ...

wc is a Unix command line tool. ...

This challenge is to build your own Data Privacy Vault. It is a way to keep sensitive information safe. The vault stores the data and controls who can access it, making sure it’s managed, watched over, and used appropriately. ...

diff is a Unix command line tool. ...

Build your own Discord bot. ...

A DNS Forwarder is a nameserver that is used to resolve DNS queries locally instead of directly using the authoritative nameserver chain. Often they sit on the edge of a local area network and provide DNS resolution to the computers on the local network, reducing external traffic and speeding up external access by serving the answer from a local cache. ...

Build your own DNS Resolver. ...

Docker is a software platform that allows you to build, test, and deploy applications quickly. It does that by packaging software into container images. These container images include everything needed to run the software - libraries, system tools, configuration and application. ...

Dropbox is a cloud storage and file-sharing service that allows users to store files online and access them from any device. It simplifies file synchronization across multiple devices and facilitates collaboration through file sharing. Dropbox is a widely used solution for personal and professional file storage, backup, and collaboration needs. ...