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@vedantroy
vedantroy / demo.ts
Last active December 31, 2024 09:15
SQLite-backed key-value store with JS-like object manipulation and automatic JSON serialization.
import Database from 'better-sqlite3';
import { createDatabaseClient } from './proxy.ts';
// 1) Create an in-memory DB and your table(s).
const db = new Database(':memory:');
db.exec(`
CREATE TABLE users (
id TEXT PRIMARY KEY,
data JSON
);
@dangovorenefekt
dangovorenefekt / blockmetatwitter.md
Last active January 14, 2025 22:25
Block Meta and Twitter (nginx)
@orimanabu
orimanabu / install_podman_on_amazon_linux_2023.sh
Last active March 24, 2025 04:42
Install Podman on Amazon Linux 2023
#!/bin/bash
# To build podman, you have enough resource on the instance.
# I tested this script on t2.xlarge.
topdir=${HOME}/work
mkdir -p ${topdir}
# Install prereq rpms
sudo dnf install -y git golang libseccomp-devel gpgme-devel autoconf automake libtool yajl yajl-devel libcap-devel systemd-devel cni-plugins iptables-nft rpm-build meson golang-github-cpuguy83-md2man.x86_64
@moyix
moyix / killbutmakeitlooklikeanaccident.sh
Created February 5, 2022 22:51
Script to inject an exit(0) syscall into a running process. NB: only x86_64 for now!
#!/bin/bash
gdb -p "$1" -batch -ex 'set {short}$rip = 0x050f' -ex 'set $rax=231' -ex 'set $rdi=0' -ex 'cont'
@acutmore
acutmore / README.md
Last active February 27, 2025 19:55
Emulating a 4-Bit Virtual Machine in (TypeScript\JavaScript) (just Types no Script)

A compile-time 4-Bit Virtual Machine implemented in TypeScript's type system. Capable of running a sample 'FizzBuzz' program.

Syntax emits zero JavaScript.

type RESULT = VM<
  [
    ["push", N_1],         // 1
    ["push", False],       // 2
 ["peek", _], // 3
@nelhage
nelhage / main.go.c
Last active September 22, 2020 02:49
A Go/C polyglot
// \
/*
#include <stdio.h>
int main() {
printf("Hello, World from C!\n");
return 0;
}
#if 0
//*/
@soderlind
soderlind / Install.txt
Last active September 7, 2024 05:45
macOS DoH! (DNS over HTTPS) using cloudflared
1) Install cloudflared using homebrew:
brew install cloudflare/cloudflare/cloudflared
2) Create /usr/local/etc/cloudflared/config.yaml, with the following content
proxy-dns: true
proxy-dns-upstream:
- https://1.1.1.1/dns-query
- https://1.0.0.1/dns-query
@joshbuchea
joshbuchea / semantic-commit-messages.md
Last active May 1, 2025 17:18
Semantic Commit Messages

Semantic Commit Messages

See how a minor change to your commit message style can make you a better programmer.

Format: <type>(<scope>): <subject>

<scope> is optional

Example

@simonw
simonw / recover_source_code.md
Last active September 28, 2024 08:10
How to recover lost Python source code if it's still resident in-memory

How to recover lost Python source code if it's still resident in-memory

I screwed up using git ("git checkout --" on the wrong file) and managed to delete the code I had just written... but it was still running in a process in a docker container. Here's how I got it back, using https://pypi.python.org/pypi/pyrasite/ and https://pypi.python.org/pypi/uncompyle6

Attach a shell to the docker container

Install GDB (needed by pyrasite)

apt-get update && apt-get install gdb