Baseline branch with failing tests you are meant to fix.
312 Labs shipped
DOM + async exercises versioned per cohort.
9.1/10 Session pulse
Internal mentor surveys after each intensive weekend.
118 Review cycles
Annotated timelines published for the next group.
54 Starter kits
Physical USB archives for low-bandwidth weeks.
2.4k Forum threads
Moderated weekly; spam hooks removed same day.
“Mentors annotated my WebSocket collab lab with timestamps on reconnect UX—super concrete.”
— Priya N., verified participant · WebSocket collab lab
Live metric
Median cold start delta after bundler swap week: -38% on cohort laptops.
Studio note
Mentors publish diff rituals, not verdicts, so async time zones stay respectful.
Stack
Vite · workers · Playwright traces · Zod handoffs
400+ review threads closed since 2019
We teach JavaScript where the browser, the edge, and your repo meet. Each track pairs measurable labs with public mentor notes so teams can audit how decisions were made.
Open track list
Trusted by guilds at Andes Retail APIs, Riverplate Analytics, Caracas Guild Labs
Signals we optimize for
Traceable pedagogy
Lesson replays carry DOM signal layers aligned to audio peaks so reviewers jump to the teaching beat, not blank frames.
Honest capacity math
Advisor blocks publish expected hours before you enroll. Installment totals include admin fees where applicable—see Rates.
Cool-palette portfolios
Canvas exercises ship with WCAG ramps so demo day stays legible without muting personal type choices.
Edge realism
Worker modules include failure stories for KV limits and secret hygiene, not just happy paths.
Studio cadence
Five beats repeat each sprint—no four identical circles—mapped to how teams actually ship.
Add traces, budgets, or schema guards taught that week.
Async comments first, merge verdict second, timers visible.
Tag release notes with risks called out explicitly.
Public mentor timeline archived for the next cohort.
Featured JavaScript tracks
Full catalog
Lane comparison
| Observer | Builder | Guild | |
|---|---|---|---|
| Mentor grading | No | Yes | Shared channel SLA |
| Certificate | No | When rubric passes | Per team charter |
| Live critiques | Calendar only | Two included | Quarterly workshop |
| Custom tokens | No | No | Yes |
Do you teach a specific framework religion?
No. Modules stay on runtime behavior, tooling, and contracts so you can map lessons to your stack.
How much weekly depth should I budget?
Most tracks expect six to nine focused hours plus labs; guild lanes scale with your team charter.
Are certificates automatic?
Only after passing rubric-linked modules; observer lane stays read-only without grading.
Notes in your inbox
Field notes on bundler swaps, DOM signal layers, and office hour etiquette.
No countdowns—unsubscribe any week; we publish archive links quarterly.
Teams borrowing the studio
ARA — Andes Retail APIs RPA — Riverplate Analytics CGL — Caracas Guild Labs MTC — Maracaibo Telemetry Co-op ODS — Orinoco Design Systems LEC — Llanos Edge Collective
Enquire about the Builder lane
Next intensive block opens 2026-06-09. We cap live sections when mentor ratios would drop below published levels—see Method page for the current number.