AI grades your real PRs. Lessons adapt to what you fumbled.

For working developers getting confident on a new stack in about six weeks, from your own actual code, not another video course.

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12 func processJobs(jobs []Job) {

13 - go func() { handleJob(jobs[i]) }()

13 + wg.Add(1); go func(j Job) {

14 + defer wg.Done(); handleJob(j)

15 }(jobs[i])

HackQuest AI

Loop variable capture: the goroutine closes over i not its value. By the time the goroutine runs, i may have advanced. Pass jobs[i] as a function argument to capture the value.

Next: Goroutine variable capture patterns

80+ developers trained

15 stacks supported

6 weeks avg to confident PR output

<2 hrs AI grading turnaround

How it works

From PR to lesson in three steps

No fixed syllabus. Your mistakes drive your curriculum.

Submit a real PR

Push your code to a practice branch and open a pull request. Use your own project or a HackQuest starter repo for your target stack.

AI reads every diff line

The AI reads each changed line and maps errors to the concepts behind them, distinguishing a syntax mistake from a conceptual gap in async patterns or error handling idioms.

Your next lesson targets the gap

A lesson is queued that addresses exactly what you fumbled. Not the next item in a fixed syllabus. The curriculum adapts with every PR you submit.

Grading that reads your code, not a rubric

Most tools catch linting errors. HackQuest identifies the conceptual gap underneath the error and links it to a learning objective you have not covered yet.

Error type identification in context, not just pattern matching
Root concept mapping to your stack's idiomatic patterns
Learning gap scored against your running concept map
Feedback delivered inline on the diff, not in a separate report

41 func (c *Cache) Set(key string, val any) {

42 - c.data[key] = val

42 + c.mu.Lock()

43 + defer c.mu.Unlock()

44 + c.data[key] = val

HackQuest AI

Data race

Concurrent writes to an unprotected map cause a data race. The fix adds a mutex, but consider using sync.RWMutex so reads can proceed in parallel.

HackQuest AI

Concept gap

Mutex vs RWMutex trade-offs not yet covered in your path. Queuing lesson: Concurrent map access patterns in Go.

Next lesson queued: Go sync primitives

80+

developers trained since 2024

tech stacks with full adaptive grading

6 weeks

average time to confident production code

"I switched from Python to Go in five weeks. The difference with HackQuest was that every lesson came directly out of a real PR I had just written. The feedback was specific in a way that no tutorial had ever been."

Ravi M. Senior Engineer, logistics platform

"I have tried video courses for TypeScript twice before. I kept learning syntax and then freezing on actual code reviews. HackQuest flipped that: the code review is the lesson."

Sarah C. Mid-level Developer, growing SaaS company

Pricing

Start free, scale when it works

No credit card required to start.

Starter

$0 / month

3 PR reviews per month
1 tech stack
Standard feedback turnaround

Start free

AI grades your real PRs. Lessons adapt to what you fumbled.

From PR to lesson in three steps

Submit a real PR

AI reads every diff line

Your next lesson targets the gap

Grading that reads your code, not a rubric

Start free, scale when it works

Start grading your real code today.