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TypeScript

Python

Rust

React

Node.js

Docker

PostgreSQL

Next.js

Kubernetes

GraphQL

Java

C++

TypeScript

Python

Rust

React

Node.js

Docker

PostgreSQL

Next.js

Kubernetes

GraphQL

Java

C++

TypeScript

Python

Rust

React

Node.js

Docker

PostgreSQL

Next.js

Kubernetes

GraphQL

Java

C++

repository: petcare-apigit: main

1 test failing

Files

routes/

controllers/

bookingController.js

tests/

bookings.test.js

models/

package.json

bookingController.js●

bookings.test.js

authMiddleware.js

// bookingController.js — Production Repository

router.get('/bookings/:id', async (req, res) => {

const booking = await Booking.findById(req.params.id);

// BUG: No authorization check — any user can view arbitrary booking

return res.json(booking);

}

TERMINAL — JEST TEST RUNNER$ npm test -- bookings

✕ FAIL tests/bookings.test.js

✓ should return 404 for non-existent booking

✕ should return 403 when accessing another user's booking

Expected: 403 Forbidden | Received: 200 OK

THE PROBLEM

You know how to solve the problem. Can you fix the codebase?

You’ve solved the arrays questions. You’ve memorised the patterns. You’ve collected the badges.

Then someone hands you an unfamiliar repository, a failing test, and a bug nobody has explained.

Welcome to actual software engineering.

The puzzle trap

Passing algorithm tests doesn’t automatically prepare you for navigating an existing application.

The tutorial comfort zone

Building a project from scratch is different from understanding code written by someone else.

The interview disconnect

Real engineering involves debugging, testing, reading unfamiliar code, and making safe changes.

MEET REPOXIVE

Less LeetCode energy.
More engineer energy.

RepoXive puts you inside real-world-style repositories and gives you practical engineering tasks to complete.

Read the code. Find the bug. Make the change. Run the tests. Understand why it works.

That’s the skill we’re here to help you build.

EXPLORE

Understand an unfamiliar repository.

DEBUG

Trace the problem instead of guessing.

BUILD

Implement the feature or fix.

VERIFY

Run tests and check your changes.

IMPROVE

Review your approach and learn from the result.

Your next coding challenge isn’t another Two Sum.

petcare-api

main

Explorer

routes/

bookings.js

controllers/

bookingController.js

tests/

bookings.test.js

models/

booking.js

package.json

bookings.js

1// routes/bookings.js

2router.get('/bookings/:id', async (req, res) => {

3 const booking = await Booking.findById(req.params.id);

5 // BUG: No authorization check!

6 // Any user can access any booking by ID

8 if (!booking) {

9 return res.status(404).json({ error: 'Not found' });

10 }

12 res.json(booking);

13});

Task

Users can access another user’s booking by changing the booking ID.

3 tests failing

Challenge

Find the authorisation bug, fix it, and make sure existing booking functionality still works.

Terminal

$ npm test -- bookings

✕ should prevent unauthorized booking access

✕ should return 403 for other user's booking

✕ should allow owner to view own booking

✓ should return 404 for non-existent booking

Yeah, I’d rather practise this

Built for the people who actually write and hire engineers.

For Developers

Stop preparing only for interviews. Prepare for the job.

Practise navigating repositories, debugging existing applications, implementing features, and verifying your work.

Build the confidence to open an unfamiliar codebase and know where to start.

For Colleges & CRT Providers

Your students need more than another aptitude worksheet.

Bring practical repository-based software engineering exercises into placement training.

Give students structured coding tasks that develop debugging, code navigation, implementation, and testing skills.

—Structured practical assignments
—Repeatable exercises
—A more realistic engineering workflow
—The opportunity to review student progress

Dashboard and reporting features are planned capabilities.

For Companies

Don't just ask candidates to write code. See how they work.

Explore practical, repository-based assessments designed to evaluate how developers investigate bugs, implement changes, and validate their solutions.

—Repository-based technical assessments
—Practical tasks based on engineering workflows
—Evidence from tests and code changes
—A more realistic complement to conventional interviews

Touch grass? Later.
Fix the failing tests first.

500 LeetCode problems?

Respect the grind.

But can you read a codebase you didn’t write?

Can you fix a bug without rewriting the entire application?

Can you make a change without breaking three other things?

That’s the energy we’re building for.

Real code. Real skills. Proven.

From unfamiliar code to actual confidence.

Pick a repository challenge.

Choose a task that matches the skill you want to practise — debugging, implementation, or code investigation.

Understand the existing code.

Navigate the repository structure, read through modules, and build context before making changes.

Solve the task and verify your changes.

Implement your solution, run the tests, and confirm that your changes work without breaking anything else.

Review your results and improve.

See which tests passed, review what you changed, and identify areas to strengthen next time.

Every challenge should help you practise a skill you can use beyond the platform.

For institutions and companies, challenge formats can be adapted to training or assessment needs.

Because writing code is only part of the job.

Traditional preparation	RepoXive approach
Isolated coding problems	Existing repositories
Solve a self-contained question	Understand existing code
Focus on getting an answer	Focus on making a safe change
Submit a solution	Verify behaviour with tests
Prepare for the interview	Practise engineering workflows

Algorithm practice remains valuable. RepoXive complements it with practical repository work.

Your GitHub deserves better than tutorial clones.

Start practising the engineering work that happens after the repository has already been created.

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Developers. Colleges. Hiring teams. Let's build something useful.

Let's talk.

Tell us what you're looking for, or email directly atnaveennampally161@gmail.com

We are so sorry they made you grind L*etCode.Now prove you can actually build.

You know how to solve the problem. Can you fix the codebase?

The puzzle trap

The tutorial comfort zone

The interview disconnect

Less LeetCode energy.More engineer energy.

EXPLORE

DEBUG

BUILD

VERIFY

IMPROVE

Your next coding challenge isn’t another Two Sum.

Built for the people who actually write and hire engineers.

Stop preparing only for interviews. Prepare for the job.

Your students need more than another aptitude worksheet.

Don't just ask candidates to write code. See how they work.

Touch grass? Later.Fix the failing tests first.

From unfamiliar code to actual confidence.

Pick a repository challenge.

Understand the existing code.

Solve the task and verify your changes.

Review your results and improve.

Because writing code is only part of the job.

Your GitHub deserves better than tutorial clones.

Let's talk.

Less LeetCode energy.
More engineer energy.

Touch grass? Later.
Fix the failing tests first.