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gstack (github.com/garrytan/gstack), a free open-source repo by Garry Tan with…

Brief

gstack (github.com/garrytan/gstack), a free open-source repo by Garry Tan with 108k stars, offers 23 skills and a 3-command setup — features include /office-hours, /plan-eng-review, /design-shotgun, /qa, and GBrain persistent memory. @DeRonin_ says he now runs a solo automated marketing agency (replacing ~5 hires) and cites an 18-year-old winning a hackathon in 1h45m using the repo.

Source evidence

okay i'm just gonna share this..

*that's part of workflow how i automated my solo marketing agency

been using this free repo for a few weeks. ships in hours what used to take days

23 ready skills. product → design → QA → docs

an 18-year-old won a hackathon with this repo last month. in 2 hours

while 80 others were still figuring out what to build (cheat code for planning)

made by @garrytan (president of YC). 108k stars. you probably haven't found it

[ what blew my mind ]:

the setup takes 3 commands.. not 3 days

> 23 structured skills covering every phase: think → plan → build → ship
> /office-hours - YC-style review before you write a line of code
> /plan-eng-review - full architecture from one product decision
> /design-shotgun - 4-6 design variants in parallel, opens in your browser
> /qa - opens a real browser and clicks through your flows. finds bugs in the running product
> GBrain - persistent memory between sessions. the agent never forgets again

[ how i'm using it ]:

i run a fully automated marketing agency. solo. zero employees

gstack handles a lot of what used to need 5 hires:

> /office-hours scopes client launches in 5 min instead of 30
> /design-shotgun ships 6 landing page variants in one session
> /qa catches broken automation flows before clients see them
> /document-release keeps client deliverables updated automatically
> GBrain remembers every client's voice + history across sessions

what used to eat my mornings now finishes in an hour

[ the part nobody's talking about ]:

most developers using Claude Code are leaving 80% of its potential on the table.. they treat it like autocomplete

gstack treats it like a development system. product thinking, architecture, design, QA, docs - all passed between phases automatically

you stop re-explaining context every step

[ and the craziest part ]:

Rakhatbek (the kid who won) said it would have been "practically impossible to build a game like this in 1 hour 45 minutes manually"

3 commands. 1 markdown file. 23 skills

most developers will never install it.. not because it's hard, but because they think it's just another tutorial

Repo: github.com/garrytan/gstack

100% FREE, OPEN-SOURCED

full breakdown here ↓

Noisy (@noisyb0y1)

x.com/i/article/206328816314…

— https://nitter.net/noisyb0y1/status/2063295755104747553#m