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This is a mini-tutorial of sorts for getting started with gdb on the Switch, with the target audience being people who want to mod and/or reverse games, with no prerequisite knowledge of gdb. The goal will be to walk you through some of the basic workflows needed to use a debugger on the Switch, while being brief enough for skimming for when you forget things.

If some part is unclear, your OS doesn't have install instructions, or you feel part of your workflow should be added here, feel free to comment any additions.

(If you only need a quick reference Jump to the Appendix)

Installing GDB

First off you'll need a version of GDB compatible with aarch64. This can be obtained via either a distribution of

This is mostly for my own benefit when I invariably format a computer using these adapters and forget how to get wifi working again:

Plug device in and ensure it is detected via lsusb:

For the T3U Plus, the ID is 2357:0138.

Comparison chips (SoCs) table for ESP8266/ESP32/ESP32-S2/ESP32-S3/ESP32-C3/ESP32-C6

A minimal table to compare the Espressif's MCU families.

	ESP8266	ESP32	ESP32-S2	ESP32-S3	ESP32-C3	ESP32-C6
Announcement Date	2014, August	2016, September	2019, September	2020, December

I recently had to figure out for a Clojure application how to download all dependency JAR files, for use in a Docker container.

When creating an uberjar, depstar re-downloaded all the external dependencies from Maven central, even though in an earlier Docker build step, I ran clj -Spath to pre-download them (presumably cached into the .m2 directory). In the past, I've used lein deps to do something similiar.

I'm grateful for Sean Corfield helping out (again!!): In short, use clj -P (short for "prepare") to download dependencies. Note the "A:depstar" option, which ensures that the depstar dependencies are downloaded, too.

Here's what it looks like in a Dockerfile:

# to pre-download dependencies, only done if deps.edn changes

Assigning Static IP Addresses in WSL2

WSL2 uses Hyper-V for networking. The WSL2 network settings are ephemeral and configured on demand when any WSL2 instance is first started in a Windows session. The configuration is reset on each Windows restart and the IP addresses change each time. The Windows host creates a hidden switch named "WSL" and a network adapter named "WSL" (appears as "vEthernet (WSL)" in the "Network Connections" panel). The Ubuntu instance creates a corresponding network interface named "eth0".

Assigning static IP addresses to the network interfaces on the Windows host or the WSL2 Ubuntu instance enables support for the following scenarios:

Clojure CLI/deps Projects

Clojure CLI tools (with deps.edn) allow for a built in way to create projects.

Official CLI/deps guide: https://clojure.org/guides/deps_and_cli

Pre-reqs: Clojure and dependencies installed.

Clojure Tools + Deps New

Install Clojure

Official site: https://www.clojure.org/index

Mac

brew install openjdk clojure rlwrap

Export Google Authenticator secret OTP-keys

I recently got myself a Yubikey and wanted to set up the Yubico Authenticator with all the OTPs I had in Google Authenticator. Unfortunately Yubico Authenticator doesn't support scanning the QR-code that the Google Authenticator generates when you export the OTP-keys, and it seemed like quite the daunting task to log in to every service to generate new OTP-keys. So I decided to have a look at the contents of the QR code, to see if I could import the keys into Yubico Authenticator in one go. Luckily I found a blog post by Alex Bakker that describes the data format.

Transfer QR-code to computer

Unfortunately, but likely for the best, the security policy of Google Authenticator won't allow you to take a screenshot of

Clojure assertion

Discussing with a colleague about some issues with dynamic programming languages and I quickly run into the rationale that programming with assertions is a common practice around this world. The idea would be to protect your function from a bad input or output state.

I am not entirely sure on that, and by far I can't speak for the industry, and I found fews posts about the subject such as Life with dynamic typing from David Nolen, but nothing too concrete. Anyway, I want to dig

	#!/data/data/com.termux/files/usr/bin/bash

	echo "Uninstalling Kali, please be patient..."

	chmod 777 -R kali-fs
	rm -rf kali-fs
	rm -rf kali-binds
	rm -rf kali.sh
	rm -rf start-kali.sh
	rm -rf ssh-apt.sh