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Cloud-Init Debugging

Cloud-init combined with terraform can be a powerful tool to provision instances on startup. Debugging scripts that are run by cloud-init however are not the easiest to debug.

Logs

Usually on an Ubuntu machine a lot of what is happening can be found in the syslog

cat /var/log/syslog

Generating Authy passwords on other authenticators

*update: TBC, but this new might affect how easy it is to use this technique past August 2024: Authy is shutting down its desktop app | The 2FA app Authy will only be available on Android and iOS starting in August

This gist, based in part on a gist by Brian Hartvigsen, allows you to export from Authy your TOTP tokens you have stored there.
Those can be "standard" 6-digits / 30 secs tokens, or Authy's own version, the 7-digits / 10 secs tokens.

ANSI Escape Sequences

Standard escape codes are prefixed with Escape:

Ctrl-Key: ^[
Octal: \033
Unicode: \u001b
Hexadecimal: \x1B
Decimal: 27

List of good image generator training logs

A list of public training logs from neural network image generation models, since I think they're interesting.

The Criteria

Publicly accessible link
Losses plotted every so often
Samples generated every so often
Nontrivial dataset (i.e. not MNIST - 64x64 output RGB or better)

ghcr (GitHub Container Registry) quickstart

CLI

To push container images to ghcr, you need peronal access token (PAT) - see how to create PAT

Get PAT (personal access token)

Personal Settings > Developer settings > Personal access tokens

Change Arc Browser Icon

A collection of commands that change the Arc Browser icon.

Commands

Theme	Command
Candy Arc	`defaults write company.thebrowser.Browser currentAppIconName candy`

	interfaces {
	lo0 {
	unit 0 {
	family inet {
	filter {
	input-list [ discard-frags accept-single-hop-bfd-v4 accept-multi-hop-bfd-v4 accept-bgp-v4 accept-ospf2 accept-vrrpv3-v4 accept-established-v4 accept-common-services-v4 discard-all-v4 ];
	}
	}
	family inet6 {
	filter {

	#!/bin/bash

	# UDP:
	socat UDP4-LISTEN:5683,fork,su=nobody UDP6:[aaaa::212:4b00:615:a1f7]:5683

	# TCP:
	socat TCP4-LISTEN:22,fork,su=nobody TCP6:[2a01:198:79d:1::8]:22

	# UDP, IPv6
	socat UDP6-LISTEN:5683,fork,su=nobody UDP6:[aaaa::212:4b00:615:a1f7]:5683

	Region,Country,Item Type,Sales Channel,Order Priority,Order Date,Order ID,Ship Date,Units Sold,Unit Price,Unit Cost,Total Revenue,Total Cost,Total Profit
	Australia and Oceania,Tuvalu,Baby Food,Offline,H,5/28/2010,669165933,6/27/2010,9925,255.28,159.42,2533654.00,1582243.50,951410.50
	Central America and the Caribbean,Grenada,Cereal,Online,C,8/22/2012,963881480,9/15/2012,2804,205.70,117.11,576782.80,328376.44,248406.36
	Europe,Russia,Office Supplies,Offline,L,5/2/2014,341417157,5/8/2014,1779,651.21,524.96,1158502.59,933903.84,224598.75
	Sub-Saharan Africa,Sao Tome and Principe,Fruits,Online,C,6/20/2014,514321792,7/5/2014,8102,9.33,6.92,75591.66,56065.84,19525.82
	Sub-Saharan Africa,Rwanda,Office Supplies,Offline,L,2/1/2013,115456712,2/6/2013,5062,651.21,524.96,3296425.02,2657347.52,639077.50
	Australia and Oceania,Solomon Islands,Baby Food,Online,C,2/4/2015,547995746,2/21/2015,2974,255.28,159.42,759202.72,474115.08,285087.64
	Sub-Saharan Africa,Angola,Household,Offline,M,4/23/2011,135425221,4/27/2011,4187,668.27,502


	import android.content.Context;
	import android.graphics.Bitmap;
	import android.graphics.BitmapFactory;
	import android.graphics.Canvas;
	import android.graphics.Matrix;
	import android.graphics.Paint;
	import android.media.ExifInterface;
	import android.os.AsyncTask;
	import android.os.Environment;