Arunkumar S

Fullstack dev
Portfolio - Hunting | Interview Prep | Building AI Stack projects
Open-source contributor @freeCodeCamp

[Arunkumar S @ArunkumarS_98]

I got tired of boxes and arrows explaining my tech stack.

So I built Stack Weaver.

It's a @threejs flow field where your tools - React, Node, Postgres, MongoDB - become gravity wells. Particles stream between them based on real-time turbulence and attraction physics.

Every seed is a different universe. Built with Claude

[Arunkumar S @ArunkumarS_98]

@syakirbuilds Congrats 🎉

[Arunkumar S @ArunkumarS_98]

@jaijagannath081 Congrats 🚀

How are guys really doing this?

[Arunkumar S @ArunkumarS_98]

Freebuff: Free coding agents to kill Claude, Cursor, Replit, OpenCode and Devin
https://t.co/vhLWLuRT15

[Arunkumar S @ArunkumarS_98]

@victorxheng Why free matters:

When the tools that help you build stay free, more people can ship code, fix bugs, and contribute without hitting a paywall.

[Arunkumar S @ArunkumarS_98]

Why free matters

Free tools let anyone ship code, fix bugs, and contribute without a paywall. That’s how open source has always grown — unlimited iteration, zero lock-in. Freebuff keeps that freedom alive.

[Victor Cheng @victorxheng]

PEOPLE GOT SCAMMED $4K BY LOVABLE, SO WE MADE IT 100% FREE

I'm starting a war on overpriced AI subscriptions. The worst offender of this is Lovable.

They have predatory pricing: once people start building, they are locked in and now have to pay thousands to progress.

We built freebuff to eliminate this:

1 / no subscriptions, no API keys

2 / zero lock in: we rebuilt all of Lovable's features and made them completely free

3 / code endlessly for hours each day without paying a dime

We don't even accept a credit card.

Lovable's $12B valuation is going to disappear real soon.

[Arunkumar S @ArunkumarS_98]

@OpenAIDevs @OpenAI

[Arunkumar S @ArunkumarS_98]

AI coding isn’t just about writing code faster.

The shift: pair programmer → engineering agent.

I open-sourced my notes + working examples on agents, skills, MCP, hooks, evals, worktrees & security.

Agentic Coding with ChatGPT & Codex ↓

https://t.co/sHcWq4iEji

[Arunkumar S @ArunkumarS_98]

AI coding isn’t just about writing code faster.

The shift: pair programmer → engineering agent.

I open-sourced my notes + working examples on agents, skills, MCP, hooks, evals, worktrees & security.

Agentic Coding with ChatGPT & Codex ↓

https://t.co/sHcWq4iEji

[Arunkumar S @ArunkumarS_98]

@tpritha03 Use can tryout Freebuff, it has 6 free sessions of AI usage per day

P.s you can check out it at @victorxheng

[Arunkumar S @ArunkumarS_98]

@zuess05 Revenue compounding

[Arunkumar S @ArunkumarS_98]

@vibeonX69 Google

[Arunkumar S @ArunkumarS_98]

@tpritha03 Lol 😂

[Arunkumar S @ArunkumarS_98]

Free AI coding tools like this matter because talent shouldn’t be locked behind a paywall.

[Victor Cheng @victorxheng]

you can now get unlimited free GLM 5.2 for the first time in history 😳

this is bigger than ever. here's how to do it:

1 / cancel your existing subscriptions:

cancel your Lovable, Cursor, and Claude Code subscriptions. you don't need them anymore

2 / sign up for an account on freebuff

you can now use unlimited GPT 5.6 and deepseek as well.

3 / to get GLM 5.2: go to the earn tab, and complete the bounties.

a bounty provides unlimited GLM 5.2 messages for an hour, each.

this isn't going to last forever.

[Arunkumar S @ArunkumarS_98]

@victorxheng This is exactly why free matters.

When frontier models aren’t locked behind $20–200/mo walls, more people can actually ship real OSS work - fixing bugs, writing docs, building features - without needing a salary or credit card. Freebuff is doing something important here.

[Arunkumar S @ArunkumarS_98]

@Pallavi_345 Yes, keep going

[Arunkumar S @ArunkumarS_98]

@Pallavi_345 😅😂

[Arunkumar S @ArunkumarS_98]

@vibeonX69 Linux

[Arunkumar S @ArunkumarS_98]

@ydamitcodes Already connected

[Arunkumar S @ArunkumarS_98]

@sonialy0 Install wsl - Ubuntu then 😅