Skip to content

Instantly share code, notes, and snippets.

View tcelestino's full-sized avatar
🏖️
Working from home

Tiago Celestino tcelestino

🏖️
Working from home
View GitHub Profile
@edxeth
edxeth / claude-frontend-design-skill
Created December 21, 2025 15:45
Claude's frontend design skill
---
name: frontend-design
description: Create distinctive, production-grade frontend interfaces with high design quality. Use this skill when the user asks to build web components, pages, or applications. Generates creative, polished code that avoids generic AI aesthetics.
license: Complete terms in LICENSE.txt
---
This skill guides creation of distinctive, production-grade frontend interfaces that avoid generic "AI slop" aesthetics. Implement real working code with exceptional attention to aesthetic details and creative choices.
The user provides frontend requirements: a component, page, application, or interface to build. They may include context about the purpose, audience, or technical constraints.
@hackermondev
hackermondev / writeup.md
Last active December 29, 2025 21:16
How we pwned X (Twitter), Vercel, Cursor, Discord, and hundreds of companies through a supply-chain attack

hi, i'm daniel. i'm a 16-year-old high school senior. in my free time, i hack billion dollar companies and build cool stuff.

about a month ago, a couple of friends and I found serious critical vulnerabilities on Mintlify, an AI documentation platform used by some of the top companies in the world.

i found a critical cross-site scripting vulnerability that, if abused, would let an attacker to inject malicious scripts into the documentation of numerous companies and steal credentials from users with a single link open.

(go read my friends' writeups (after this one))
how to hack discord, vercel, and more with one easy trick (eva)
Redacted by Counsel: A supply chain postmortem (MDL)

@avestura
avestura / delete-from-users-where-location-iran.md
Last active December 25, 2025 23:23
DELETE FROM users WHERE location = 'IRAN';

DELETE FROM users WHERE location = 'IRAN';

Hi! I am an Iranian Software Engineer, and in this torn paper note, I want to talk about some funny moments I had online related to the fact that I was spawned in this specific region of the world: Iran.

Microsoft deleted my app, ignored my mails

Back when I was a student, I got access to the Microsoft Imagine, and as a result, I got access to the Microsoft Store as a developer. This inspired me write one of my open-source projects called EyesGuard and publish it on Microsoft Store. However, one day, somebody told me that they can no longer find EyesGuard on the store.

@sangelxyz
sangelxyz / gist:f73b1f7581318979275322dc13094e19
Last active August 27, 2025 22:44
Insomnia and Postman Alternatives
Updated list / Nov 17 - 2024
Posting - https://posting.sh/ - Terminal Based
ATAC - https://github.com/Julien-cpsn/ATAC
Rest.nvim - https://github.com/rest-nvim/rest.nvim
Slumber - (uses tui client) https://slumber.lucaspickering.me/
@khalidx
khalidx / node-typescript-esm.md
Last active December 26, 2025 00:21
A Node + TypeScript + ts-node + ESM experience that works.

The experience of using Node.JS with TypeScript, ts-node, and ESM is horrible.

There are countless guides of how to integrate them, but none of them seem to work.

Here's what worked for me.

Just add the following files and run npm run dev. You'll be good to go!

package.json

@pmckee11
pmckee11 / GoogleButton.tsx
Last active February 13, 2023 14:21
New (Aug 2021) Google Sign In Button in React
import React, { FunctionComponent, useEffect, useState } from 'react';
import { Helmet, HelmetProvider, HelmetTags } from 'react-helmet-async';
const googleUrl = 'https://accounts.google.com/gsi/client';
export interface GoogleCredentialResponse {
credential: string;
}
interface GoogleButtonParams {
@eminetto
eminetto / rfc.md
Created May 15, 2021 15:42
Template de RFC

Título

Descrição do problema

Devemos explicar o problema claramente e identificar detalhes adicionais que a equipe precise saber. Devemos aqui descrever o contexto, o que foi feito até agora e o estado atual.

A descrição também serve como uma trilha à qual podemos voltar no futuro para entender o raciocínio que tínhamos na época e ver quais restrições e requisitos mudaram.

Possíveis abordagens

@ClickerMonkey
ClickerMonkey / types.ts
Last active September 16, 2025 22:30
Typescript Helper Types
// when T is any|unknown, Y is returned, otherwise N
type IsAnyUnknown<T, Y, N> = unknown extends T ? Y : N;
// when T is never, Y is returned, otherwise N
type IsNever<T, Y = true, N = false> = [T] extends [never] ? Y : N;
// when T is a tuple, Y is returned, otherwise N
// valid tuples = [string], [string, boolean],
// invalid tuples = [], string[], (string | number)[]
@s875515
s875515 / rollupReadEnvFile.js
Last active July 2, 2021 02:14
Because of the "rollup-plugin-dotenv" isn't being update all that much, so I use "@rollup/replace" and "dotenv" in conjunction.
const replace = require('@rollup/plugin-replace');
const envKeys = () => {
const envRaw = require('dotenv').config().parsed || {};
return Object.keys(envRaw).reduce(
(envValues, envValue) => ({ ...envValues, [`process.env.${envValue}`]: JSON.stringify(envRaw[envValue]) }),
{}
);
};
@JoeyBurzynski
JoeyBurzynski / 55-bytes-of-css.md
Last active December 27, 2025 06:03
58 bytes of css to look great nearly everywhere

58 bytes of CSS to look great nearly everywhere

When making this website, i wanted a simple, reasonable way to make it look good on most displays. Not counting any minimization techniques, the following 58 bytes worked well for me:

main {
  max-width: 38rem;
  padding: 2rem;
  margin: auto;
}