System Status: Ready to Deploy

Move from 80% to Shipped.

You used AI to build your idea. It looks great, but it won’t launch. There’s a bug you can’t find, an error you don’t understand.

View Sample Fixes→

fix_slop.sh

fetchUserData.js

1async function fetchUserData() {

2 const response = await fetch('/api/user')

3 const data = response.json()← Missing await!

4 return data

Promise returned instead of data

You're trying to use the Promise object before it resolves. This breaks everything downstream.

The "Vibe Coding" Runtime Error

Your prototype is stuck in a loop. You have 80% of the code, but 0% of the production readiness.

Common Build Failures:

Maximum Recursion Depth

LLMs are great at adding code, but terrible at refactoring it. Your codebase is becoming an unmaintainable mess of "fixes" that create new bugs.

Shadow DOM Dependencies

Environment variables, hydration errors, and race conditions. The "magic" works in the chat window, but fails in the real-world browser environment.

Unhandled Exceptions

You're afraid to touch anything because you don't actually know how the code works, and you don't want to break it further.

The Brief

Drop your GitHub link or paste the error message. Tell us what’s wrong in plain English. (e.g., "My Stripe button doesn't do anything.")

The Match

We pair you with a Staff Engineer—not a junior, but a vetted expert who knows your specific stack (Next.js, Supabase, OpenAI, etc.).

The Fix

Jump on a 15-minute screen share. We don't just tell you what to do; we open the code, find the "slop," fix the logic, and hit deploy together.

Stop the LLM Hallucination Loop

AI tools are great at syntax (writing code), but bad at context (understanding systems).

AI guesses based on patterns

l20 Experts reason based on experience

System Audit v2.0

Architectural Oversight

We provide the structural integrity that LLMs lack. We ensure your database is secure, your API keys are hidden, and your app can actually handle real users.

Deployment Checklist:

[✓] Security Headers
[✓] Env Var Sanitization
[✓] Load Scaling Audit

your-app.js

1async function fetchUserData() {

2 const response = await fetch('/api/user')

3 const data = response.json()

4 return data

✗

Uncaught (in promise) TypeError

data.json is not a function

at fetchUserData (your-app.js:3:21)

How We Compare

Architecture vs. Artifacts

Feature	ChatGPT / Cursor	Hiring a Freelancer	l20.dev
Cost	$20/mo	$100/hr (min 10 hours)	Flat fee per fix
Speed	Instant (but often wrong)	Days to interview/hire	Same-day session
Outcome	More code	A billable project	A shipped product
Human Expert?

Simple Pricing. Pay Only to Ship.

Stop bleeding money on hourly rates. Choose the plan that fits your pace.

The Quick Fix

$49/session

One-off fix for that one bug blocking your launch.

15-Minute Expert Screen Share
Bug Diagnosis & Repair
"Plain English" Explanation
100% Money-Back if we can't fix it

Book a Fix

The Launch Audit

$149/session

For peace of mind before you go live.

60-Minute Deep Dive
Security & Database Check
Deployment Setup (Vercel/Rail)
"Green Light" Certification

Book an expert

The l20 Guarantee

Fixed it or it's Free

If our expert cannot identify the root cause or provide a path to a fix within your session, we will refund your $49 immediately. We don't bill for head-scratching.

"I'll personally fix your first bug if needed."

Yau

Founder, Last 20