Expeditions
Not sure which trail? Pick an expedition
A trail is one subject. An expedition crosses several, picked for one kind of learner, in an order where nothing is used before it is taught - the site checks that every time it is built. Finish one for its badge and bonus XP. Lessons you have already finished count.
First Steps"I have never opened a terminal."A shell, your first commits and what a web request really does - the ground floor for everything else.7 lessons · about 1.6 h · Trailhead badge, +70 XPNot startedPlatform Engineer"I want to run the systems other people ship on."From a Linux process to a self-healing cluster with GitOps, pipelines and error budgets.38 lessons · about 9.6 h · Summit badge, +380 XPNot startedAI Builder"I want to build things with models, not just use them."How a model learns, how an LLM writes one token at a time, and how to trust an agent with real work.14 lessons · about 3.7 h · Model Maker badge, +140 XPNot startedFounder"I have an idea and no team yet."Check the problem is real, ship the smallest thing, price it, and let agents carry some of the load.15 lessons · about 3.6 h · Trailblazer badge, +150 XPNot started
Web Developer planned"I build apps and want to understand what is under them."Git as a team, the web below your framework, data that survives, and shipping it safely.24 lessons · about 5.9 h · Pathfinder badge · route mapped, opening soon
On-Call planned"I get paged when it breaks."Read what is actually failing, decide how reliable is enough, and recover without blame.22 lessons · about 5.6 h · Night Watch badge · route mapped, opening soon
Security planned"I want to know how things get broken into."The flaws attackers use, from leaked secrets to poisoned images, and the controls that stop them.19 lessons · about 4.7 h · Gatekeeper badge · route mapped, opening soon
Leader planned"I manage engineers and want their vocabulary."Enough of how it works to ask good questions about reliability, risk, recovery and price.10 lessons · about 2.5 h · Compass badge · route mapped, opening soon
Teamwork planned"I want the team I am on to work well together."How work flows, what agile's own sources say, and what the evidence says actually makes teams work.11 lessons, 5 written so far · Trail Crew badge · route mapped, opening soon