Learn tech by running it.
Short lessons and hands-on tools for SQL, Python, networking, identity, and more. Read a little, try it, see what happens.
SELECT hostname, os, last_seen
FROM devices
WHERE status = 'offline'
ORDER BY last_seen;Press Run to see the result.
What did this query do?
Tracks
- SQLAsk questions of data: select, filter, join, and summarize.Live
- PythonAutomate the boring parts and clean up messy data.Coming soon
- NetworkingSubnets, VLANs, DNS, and how packets actually get places.Coming soon
- Identity and accessEntra ID, MFA, and Conditional Access without the jargon.Coming soon
- Web developmentHTML, CSS, and JavaScript, from a blank file to a live site.Coming soon
- Building a PCPick compatible parts, put them together, and get to first boot.Coming soon
- Troubleshooting basicsA repeatable way to find what broke and fix it without guessing.Coming soon