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@metux
metux / totp-token.py
Created September 21, 2023 10:53
simple TOTP token generator w/ qrcode image decoding
#!/usr/bin/env python3
# deps: zbar-tools, oathtool
#
# call it as toptp-token.py <qrimage-filename>
#
# 1. decodes the qrcode image via zbar-img
# 2. parses totp url and extracts parameters (secret, stepping, algo, ...)
# 3. calls oathtool to generate the current token
import subprocess
@keckj
keckj / cupy_gl_interop.py
Last active April 4, 2025 03:08
CuPy/OpenGL interop example
# MIT License
# Copyright (c) 2024 Jean-Baptiste Keck
#Permission is hereby granted, free of charge, to any person obtaining a copy
#of this software and associated documentation files (the "Software"), to deal
#in the Software without restriction, including without limitation the rights
#to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
#copies of the Software, and to permit persons to whom the Software is
#furnished to do so, subject to the following conditions:
/* So how does this work?
I'm using ANSI escape sequences to control the behavior of the terminal while
cat is outputting the text. I deliberately place these control sequences inside
comments so the C++ compiler doesn't try to treat them as code.*/
//
/*The commands in the fake code comment move the cursor to the left edge and
clear out the line, allowing the fake code to take the place of the real code.
And this explanation uses similar commands to wipe itself out too. */
//
#include <cstdio>
import os
import time
import trimesh
import numpy as np
tol_norm = 1e-4
def test_align(align):
@raulqf
raulqf / Install_OpenCV4_CUDA12.6_CUDNN8.9.md
Last active April 10, 2025 17:27
How to install OpenCV 4.10 with CUDA 12 in Ubuntu 24.04

Install OpenCV 4.10 with CUDA 12.6 and CUDNN 8.9 in Ubuntu 24.04

First of all install update and upgrade your system:

    $ sudo apt update
    $ sudo apt upgrade

Then, install required libraries:

/* Helper buddy for removing async/await try/catch litter 🗑 */
function O_o(promise) {
return promise.then(data => {
if (data instanceof Error) return [data]
return [null, data]
}).catch(err => [err])
}
/* Look ma, no try/catch */
async function usageExample(params) {
@artizirk
artizirk / gnupg_scdaemon.md
Last active April 22, 2025 18:10
OpenPGP SSH access with Yubikey and GnuPG

NB: This document describles a 'Old-School' way of using Yubikey with SSH

Modern OpenSSH has native support for FIDO Authentication. Its much simpler and should also be more stable with less moving parts. OpenSSH also now has support for signing arbitary files witch can be used as replacement of gnupg. Git also supports signing commits/tags with ssh keys.

Pros of FIDO

  • Simpler stack / less moving parts
  • Works directly with ssh, ssh-add and ssh-keygen on most computers
  • Simpler
  • Private key can never leave the FIDO device

Cons of FIDO

robot-gltf

Summary

An effort to replace ROS packages describing a robot (a directory structure with URDF, SRDF, OBJ-MTL-STL-salad) with a single GLTF 2.0 GLB file including URDF and SRDF descriptions in the "extras" field of the GLTF header.

Proposed Robot-GLTF Format

  • All geometry is put into a GLTF 2.0 .GLB file.
  • Nodes in GLTF scene description are not used, but can be defined for visualization
  • The URDF and SRDF descriptions are stored in the extras field of the GLTF header.
  • Using the extras field keeps us completely compliant with the spec.
extends Node
var client
var wrapped_client
var connected = false
var message_center
var should_connect = false
func _ready():
@h4cc
h4cc / Makefile
Last active July 11, 2021 10:32
Ubuntu 18.04 Bionic Beaver - Basic packages i usually install
#
# Ubuntu 18.04 (Bionic Beaver)
#
# Basic packages i usually install.
#
# Author: Julius Beckmann <[email protected]>
#
# Upgraded Script from 17.04: https://gist.github.com/h4cc/09b7fe843bb737c8039ac62d831f244e
# Upgraded Script from 16.04: https://gist.github.com/h4cc/fe48ed9d85bfff3008704919062f5c9b