XOR

A replacement for social media

dale@xor.co.za (Dale Nunns) — Tue, 28 Jul 2026 10:56:00 +0200

I’m growing more and more frustrated with social media in general. It feels like the signal to noise ratio is all out of whack and finding good content is getting harder and harder. This started going wrong long before the current AI bubble, but AI has only accelerated things like pouring petrol on a fire.

So rather than be part of the problem, I’ve been thinking of ways to be part of the solution. I already owned this domain and was using it to post about my talks and longer-form content about things I’ve done so why not tweak things so that I can easily write shorter pieces of content here.

Fowl Play - DevConf 2026

dale@xor.co.za (Dale Nunns) — Thu, 07 May 2026 00:00:00 +0000

Talk given at DevConf 2026 - South Africa

Rapid Unplanned Disassembly - BSides Cape Town 2025

dale@xor.co.za (Dale Nunns) — Fri, 05 Dec 2025 00:00:00 +0000

Talk given at BSides Cape Town (Cape Town) - 06 December 2025

Duck Hunt - AWS 2025

dale@xor.co.za (Dale Nunns) — Sat, 20 Sep 2025 00:00:00 +0000

Talk given at AWS Community Day (Cape Town) - 20 September 2025

Duck Hunt - DevConf 2025

dale@xor.co.za (Dale Nunns) — Fri, 30 May 2025 00:00:00 +0000

Talk given at DevConf (Johannesburg and Cape Town) - 27 May 2025, 29 May 2025

Science Fair 2025

dale@xor.co.za (Dale Nunns) — Wed, 26 Mar 2025 00:00:00 +0000

Link to original video

Building Miss Duckworth - Escape 2024

dale@xor.co.za (Dale Nunns) — Thu, 05 Sep 2024 00:00:00 +0000

Talk given at Escape 2024 (Johannesburg) - 5 September 2024

I can see clearly now - Adding vision to a rubber duck - DataConf 2024

dale@xor.co.za (Dale Nunns) — Thu, 29 Aug 2024 00:00:00 +0000

Talk given at DataConf (Cape Town) - 29 August 2024

Ducking Duck - Rubber Duck 2.0 - DevConf 2024

dale@xor.co.za (Dale Nunns) — Thu, 09 May 2024 00:00:00 +0000

Talk given at DevConf (Johannesburg and Cape Town) - 7 May 2024, 9 May 2024

Downgrading an EZViz CS-CV216-A0-31EFR IP Camera

dale@xor.co.za (Dale Nunns) — Thu, 08 Feb 2024 00:00:00 +0000

After upgrading the firmware on a CS-CV216-A0-31EFR EZViz IP Camera it no longer supported ONVIF and RTSP. Below are the instructions on how to fix this.

Building a TV Network

dale@xor.co.za (Dale Nunns) — Tue, 05 Dec 2023 00:00:00 +0000

A post about ~~Taking Over~~ Building a TV Network for BSides Cape Town 2023, along with links to the code etc.

A Practical Supply Chain Hack

dale@xor.co.za (Dale Nunns) — Sat, 02 Dec 2023 00:00:00 +0000

Talk given at BSides Cape Town - 2 December 2023 on hacking a keyboard and embedding a key logger.

Hacking a Larry's 220 in 1 Arcade Retro Game

dale@xor.co.za (Dale Nunns) — Sun, 23 Jul 2023 00:00:00 +0000

This project started in December 2020, the idea was to hack one of these cheap 220-in-1 NES arcades as a birthday present for a very good friend of mine.

It ended up taking a little longer than original planned, much longer 🙈.

Pizza Hacking 2.0

dale@xor.co.za (Dale Nunns) — Mon, 29 May 2023 00:00:00 +0000

Updated notes on my attempts to make the perfect home-made Pizza.

Smart Watch Lobotomy - DevConf

dale@xor.co.za (Dale Nunns) — Fri, 26 May 2023 00:00:00 +0000

Talk given at DevConf Cape Town & Pretoria - 23 & 25 May 2023 on hacking a cheap smart watch.

HP Compaq 8300 SFF Repair

dale@xor.co.za (Dale Nunns) — Fri, 09 Dec 2022 00:00:00 +0000

Notes on fixing a friend’s HP Compaq 8300 USDT SFF machine.

All of this was done around 23rd April 2022 and I’ve finally finished writing it all up.

Smart Watch Lobotomy

dale@xor.co.za (Dale Nunns) — Sat, 03 Dec 2022 00:00:00 +0000

Talk given at BSides Cape Town - 3 December 2022 on hacking a cheap smart watch.

Hacking a FocusFit Pro-Y68

dale@xor.co.za (Dale Nunns) — Wed, 30 Nov 2022 00:00:00 +0000

A companion blog post that covers everything that was in my Smart Watch Lobotomy talk and everything that couldn’t make it into the talk.

You’ll find a lot more information on the watch, BLE hacking, SWS and firmware.

Repairing a Lenovo B590

dale@xor.co.za (Dale Nunns) — Sun, 18 Oct 2020 00:00:00 +0000

Notes on repairing my father-in-law’s Lenovo B590

Pizza Hacking

dale@xor.co.za (Dale Nunns) — Wed, 19 Aug 2020 00:00:00 +0000

Notes on my attempts to make the perfect Pizza at home during the covid19 lock down.

Chip8 'n' Dale 2.0 - Feature Creep Edition

dale@xor.co.za (Dale Nunns) — Wed, 23 Oct 2019 00:00:00 +0000

A talk given at the Cape Town Microsoft Developer User Group - @CPTMSDUG in Cape Town on 23/10/2019 on emulators and writing a CHIP8 emulator in .NET Core

Chip8 'n' Dale

dale@xor.co.za (Dale Nunns) — Mon, 24 Jun 2019 00:00:00 +0000

A talk given at DeveloperUG in Cape Town on 24/06/2019 on emulators and writing a CHIP8 emulator in .NET Core

SA Online 'Maker' Resources

dale@xor.co.za (Dale Nunns) — Thu, 07 Mar 2019 00:00:00 +0000

Links to various South African online stores that may be useful to anyone ‘making’ things.

Howto be a Hacker/Pentester/Security person - List of resources

dale@xor.co.za (Dale Nunns) — Sat, 09 Feb 2019 00:00:00 +0000

A list of resources for anyone interested in becoming a Hacker/Pentester/Security person.

Allwinner Boot / FEL / FES / NAND Dump

dale@xor.co.za (Dale Nunns) — Sat, 01 Dec 2018 00:00:00 +0000

Notes on boot process, FEL/FES mode and how to dump the NAND storage and kernel. Part of the notes for Shall We Play A Game Talk

Let's Talk Implants

dale@xor.co.za (Dale Nunns) — Sat, 01 Dec 2018 00:00:00 +0000

Lightning Talk given at BSides Cape Town 1 December 2018 on Hardware Implants

Shall We Play A Game?

dale@xor.co.za (Dale Nunns) — Sat, 01 Dec 2018 00:00:00 +0000

Talk given at BSides Cape Town - 1 December 2018 with Ross (@HypnInfosec) on hacking a SNES Classic

SNES Classic Hardware

dale@xor.co.za (Dale Nunns) — Sat, 01 Dec 2018 00:00:00 +0000

Notes on the SNES Classic hardware and modifications that can be done to it to add things such as SD storage or Serial ports. Part of the notes for Shall We Play A Game Talk

PEEK’ing and POKE’ing Memory

dale@xor.co.za (Dale Nunns) — Sat, 02 Dec 2017 00:00:00 +0000

Talk given at BSides Cape Town - 2017 on hacking a ZX Spectrum.

Dale Nunns

dale@xor.co.za (Dale Nunns) — Mon, 01 Jan 0001 00:00:00 +0000

About Me

I am a Principal Software Engineer and Team Lead with over two decades of experience building and delivering software.

Over the years, I’ve worked on just about everything from big data distributed systems and large retail stock-take platforms, to Linux and Windows kernel drivers and code running on micro-controllers.

While the majority of my day-to-day skills are in C# and .NET, I’m strictly tech-stack agnostic. I’ve always believed in using whichever tool, language, or platform the project actually requires to get the job done right.