rcarmo

# Use this with a slow cron - I had mine set to run every 24 bours and keep copies of the last 5 releases

from os import environ, listdir, makedirs
from os.path import join, exists, getmtime, isdir
from shutil import rmtree
from json import loads
from asyncio import run, create_task, sleep, create_subprocess_shell
from asyncio.subprocess import PIPE, STDOUT 
from aiohttp import ClientSession
from logging import basicConfig, INFO, DEBUG, WARNING, getLogger

probonopd

Think twice before abandoning Xorg. Wayland breaks everything!

Hence, if you are interested in existing applications to "just work" without the need for adjustments, then you may be better off avoiding Wayland.

Wayland solves no issues I have but breaks almost everything I need. Even the most basic, most simple things (like xkill) - in this case with no obvious replacement. And usually it stays broken, because the Wayland folks mostly seem to care about Automotive, Gnome, maybe KDE - and alienating everyone else (e.g., people using just an X11 window manager or something like GNUstep) in the process.

The Wayland project seems to operate like they were starting a greenfield project, whereas at the same time they try to position Wayland as "the X11 successor", which would clearly require a lot of thought about not breaking, or at least providing a smooth upgrade path for, existing software.

In fact, it is merely an incompatible alternative, and not e

chrisanthropic

Download the image builder

• git clone [email protected]:Robertof/nixos-docker-sd-image-builder.git
• cd nixos-docker-sd-image-builder

Configure for Raspi4

• modify /config/rpi4/default.nix to increase size of boot partition
  • this step is optional but I ran out of space in /boot pretty quickly with the default setting since I'm still learning and rebuilding a lot. Let's leave some room for trial & error.
  • sdImage.firmwareSize = 1024;
• modify /config/sd-image.nix
• ./rpi3 becomes ./rpi4

delphinus

const s:pi2 = 2 * 3.14159265
" pixel_ratio means the ratio of the character size.
const s:pixel_ratio = 2.0 / 1.0

" ColorWheel draws a color wheel
function! ColorWheel() abort
  const [center_x, center_y] = [&columns / 2.0, &lines / 2.0]
  const radius = min([&columns, &lines]) / 8.0 * 3
  " loop over the distance multiplied by pixel_ratio in the horizontal
  " direction because the character has a rectangular shape.

nh2

#!/usr/bin/env bash

# Installs NixOS on an OVH server, wiping the server.
#
# This is for a specific server configuration; adjust where needed.
# Originally written for an OVH STOR-1 server.
#
# Prerequisites:
#   * Create a LUKS key file at /root/benacofs-luks-key
#     e.g. by copying it up.

kolargol

#!/usr/local/bin/bash
#
# Encrypt/Decrypt/Check emails with Dovecot's mail-crpyt-plugin
# This script will encrypt/decrypt emails in-place
# Please read: https://wiki.dovecot.org/Design/Dcrypt and https://wiki2.dovecot.org/Plugins/MailCrypt
#
# Update variables with your keys and patch otherwise you will loose data!
#
# I take no responsibility for data loos this script may cause
#

jFransham

Achieving warp speed with Rust

Contents:

• Number one optimization tip: don't
• Never optimize blindly
• Don't bother optimizing one-time costs
• Improve your algorithms
• CPU architecture primer
• Keep as much as possible in cache
• Keep as much as possible in registers

alirobe

### 
###
### UPDATE: For Win 11, I recommend using this tool in place of this script: 
### https://christitus.com/windows-tool/
### https://github.com/ChrisTitusTech/winutil
### https://www.youtube.com/watch?v=6UQZ5oQg8XA
### iwr -useb https://christitus.com/win | iex
###
###

adamkaplan

# SSL request to hostname that is not in DNS

> curl -o /dev/null -w @curlformat https://beta.finance.yahoo.com
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100  255k    0  255k    0     0   233k      0 --:--:--  0:00:01 --:--:--  233k

Size:     261255
DNS:      0.522
Connect:  0.536

drkarl

Linux Backup Solutions

I've been looking for the best Linux backup system, and also reading lots of HN comments.

Instead of putting pros and cons of every backup system I'll just list some deal-breakers which would disqualify them.

Also I would like that you, the HN community, would add more deal breakers for these or other backup systems if you know some more and at the same time, if you have data to disprove some of the deal-breakers listed here (benchmarks, info about something being true for older releases but is fixed on newer releases), please share it so that I can edit this list accordingly.

Amanda (comments by sammcj)

• It has a lot of management overhead and that's a problem if you don't have time for a full time backup administrator.