max-i-mil

Linux Virtual Machines with Private Network on an Apple M1 Device

Background

The aim was to be able to:

1. Run multiple Linux VMs on an Apple M1/ARM device
2. Use Apple's HVF for native performance speeds
3. Configure VMs to allow network access to each other
4. Configure VMs to allow access to the internet
5. Not rely on custom modifications of software

joelonsql

🗺🐘 1000+ PostgreSQL EXTENSIONs

This is a list of URLs to PostgreSQL EXTENSION repos, listed in alphabetical order of parent repo, with active forks listed under each parent.

⭐️ >= 10 stars
⭐️⭐️ >= 100 stars
⭐️⭐️⭐️ >= 1000 stars
Numbers of stars might not be up-to-date.

natanlao

For those who prefer to avoid solutions like iCloud Photos and Dropbox for backing up photos, you can sync your iPhone photos with Syncthing. To do this, you'll need two things:

• Möbius Sync is, to my knowledge, the only actively-maintained Syncthing client for iOS. It's free to sync up to 20 MB, and only $4.99 (one-time) to remove that limit.

• PhotoSync is a nifty iOS app for syncing photos to a number of different destinations. It's free for low-quality

mike-myers-tob

Debug with GDB on macOS 11

The big reason to do this is that LLDB has no ability to "follow-fork-mode child", in other words, a multi-process target that doesn't have a single-process mode (or, a bug that only manifests when in multi-process mode) is going to be difficult or impossible to debug, especially if you have to run the target over and over in order to make the bug manifest. If you have a repeatable bug, no big deal, break on the fork from the parent process and attach to the child in a second lldb instance. Otherwise, read on.

Install GDB

Don't make the mistake of thinking you can just brew install gdb. Currently this is version 10.2 and it's mostly broken, with at least two annoying bugs as of April 29th 2021, but the big one is https://sourceware.org/bugzilla/show_bug.cgi?id=24069

$ xcode-select install  # install the XCode command-line tools

Muzietto

# THIS IS THE PANE LAYOUT CREATED
# pane numbers are relative to the end of the actions
#  _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
# | pane 0        | pane 1         |
# |               |                |
# |               |- - - - - - - - |
# |               | pane 2         |
# |               |                |
# |               |- - - - - - - - |
# |               | pane 3         |

standaloneSA

List of desktop Nvidia GPUS ordered by CUDA core count

Compute Capability from (https://developer.nvidia.com/cuda-gpus) Check the card / architecture / gencode info: (https://arnon.dk/matching-sm-architectures-arch-and-gencode-for-various-nvidia-cards/)

GPU	CUDA cores	Memory	Processor frequency	Compute Capability	CUDA Support
GeForce GTX TITAN Z	5760	12 GB	705 / 876	3.5	until CUDA 11
NVIDIA TITAN Xp	3840	12 GB	1582	6.1	CUDA 8+

soxofaan

How to get a stack trace for each thread in a running Python script

Sometimes a Python script will simply hang forever with no indication of what is going wrong. Perhaps it's polling a service that will never return a value that allows the program to move forward.

Here's a way to see where the program is currently stuck, using pyrasite a tool for injecting code into running Python processes.

Install gdb and pyrasite

Install gdb.

rikka0w0

In this configuration, DHCP will run on the OpenWrt Box, while the TFTP server (the one serves the boot files) runs on a different computer.

1. Add to /etc/config/dhcp on OpenWrt Box

config boot linux
        option filename 'pxelinux.0'
        option serveraddress '192.168.?.?'
        option servername '?'

amake

SHELL := /bin/bash

# Requires ffmpeg, libheif

heic := $(wildcard *.HEIC)
jpg := $(heic:.HEIC=.jpg)

.PHONY:
all: silent-pingpong.mp4 with-audio-pingpong.mp4

ansemjo

# drop-in override to fix and enable autologin in rootless containers with systemd init
# e.g.:
#
#   podman run --rm -it \
#     -v .../container-systemd-autologin.conf:/etc/systemd/system/console-getty.service.d/override.conf:ro \
#     centos:latest /usr/lib/systemd/systemd

[Service]
ExecStart=
ExecStartPre=-/usr/bin/sed -i '/pam_loginuid.so/d' /etc/pam.d/login