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Allan Garcez g4rcez

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@sohamkamani
sohamkamani / rsa.js
Last active December 24, 2024 15:57
An example of RSA Encryption implemented in Node.js
const crypto = require("crypto")
// The `generateKeyPairSync` method accepts two arguments:
// 1. The type ok keys we want, which in this case is "rsa"
// 2. An object with the properties of the key
const { publicKey, privateKey } = crypto.generateKeyPairSync("rsa", {
// The standard secure default length for RSA keys is 2048 bits
modulusLength: 2048,
})
@andrebrait
andrebrait / keychron_linux.md
Last active July 13, 2025 19:07
Keychron keyboards on Linux + Bluetooth fixes

Here is the best setup (I think so :D) for K-series Keychron keyboards on Linux.

Note: many newer Keychron keyboards use QMK as firmware and most tips here do not apply to them. Maybe the ones related to Bluetooth can be useful, but everything related to Apple's keyboard module (hid_apple) on Linux, won't work. As far as I know, all QMK-based boards use the hid_generic module instead. Examples of QMK-based boards are: Q, Q-Pro, V, K-Pro, etc.

Most of these commands have been tested on Ubuntu 20.04 and should also work on most Debian-based distributions. If a command happens not to work for you, take a look in the comment section.

Make Fn + F-keys work (NOT FOR QMK-BASED BOARDS)

Older Keychron keyboards (those not based on QMK) use the hid_apple driver on Linux, even in the Windows/Android mode, both in Bluetooth and Wired modes.

@fabiolimace
fabiolimace / uuid.js
Last active March 20, 2025 17:45
No Dependency / Do It Yourself / You Know What You Are Doing UUID generator for Javascript
const v4 = () => {
return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
const r = Math.trunc(Math.random() * 16);
const v = c == 'x' ? r : (r & 0x3 | 0x8);
return v.toString(16);
});
}
const v7 = () => {
return 'tttttttt-tttt-7xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
@mikeslattery
mikeslattery / .idea-lazy.vim
Last active July 17, 2025 02:58
LazyVim mappings for Jetbrains IDEs
" ~/.idea-lazy.vim
" LazyVim mappings for Jetbrains IDEs
" Required plugins. https://plugins.jetbrains.com/bundles/7-ideavim-bundle
" IDEAVim
" Which-Key
" IdeaVim-Sneak
" To install, add this to the top of your ~/.ideavimrc:
@pontusab
pontusab / proximity-prefetch.tsx
Created April 6, 2025 06:43
Next.js Proximity Prefetch (PPF)
"use client";
import { useRouter } from "next/navigation";
import type { ReactNode } from "react";
import { useCallback, useEffect, useState } from "react";
interface ProximityPrefetchProps {
children: ReactNode;
threshold?: number;
predictionInterval?: number;