About me

Roald Nefs is an IT consultant at Warpnet B.V. with over five years of Site Reliability Engineering (SRE) and DevOps experience at various companies like DUO and KPN. He has made several contributions to open source, to tools such as SaltStack, Prometheus, rfcat and many more. Roald enjoys tinkering with electronics, hardware hacking, software development and dogsport.

You can get in touch with me by email at info@roaldnefs.com (PGP), Twitter (@roaldnefs), and LinkedIn.

Posts

My blog is a collection of articles. Here are the most recent posts:

• Spoofing Microchips used for Animal Identification (2022-11-30)
• How to Automatically Generate Clients for your REST API (2020-12-19)
• Git Branching (2020-05-10)
• Getting Started with Git (2020-04-20)
• How To Create a Visual Studio Code Extension Pack (2020-04-17)
• Ding Dong Ditch using SDR and Arduino (2020-01-03)
• Hardware Reversing the Sitecom Wireless Router 150N X1 (2019-12-15)
• Update YARD Stick One Firmware (2019-01-17)
• Software Defined Radio on Linux (2019-01-06)

Talks

Here are the most recent talks:

• Site Reliability Engineering, How KPN Might Run Production Systems
  Invited talk at KPN, Specials & Telco Stack Domain, Groningen (2021-10-06) - Slides
• Software Defined Radio (SDR)
  Invited workshop at Defcon 3158, Zwolle (2019-11-17) - Slides
• Site Reliability Engineering, How DUO Might Run Production Systems
  Invited talk at DUO, Continuous Delivery Team, Groningen (2019-09-03) - Slides
• Introducing Postmortems, Learning from Failure
  Invited talk at DUO, Ops department, Groningen (2019-08-19) - Slides
• SaltStack, Writing Execution Modules
  Guest lecture for HBO-ICT (IT), Network & Security Engineering, Hanze University of Applied Sciences, Groningen (2019-06-11) - Slides