Tootfinder

Learning Stability Certificate for Robotics in Real-World Environments
Zhe Shen
https://arxiv.org/abs/2510.03123 https://arxiv.org/pdf/2510.03123

Learning Stability Certificate for Robotics in Real-World Environments
Stability certificates play a critical role in ensuring the safety and reliability of robotic systems. However, deriving these certificates for complex, unknown systems has traditionally required explicit knowledge of system dynamics, often making it a daunting task. This work introduces a novel framework that learns a Lyapunov function directly from trajectory data, enabling the certification of stability for autonomous systems without needing detailed system models. By parameterizing the Lyap…

Unter 200 Gramm: Sharp will kompakte VR-Brille per Crowdfunding veröffentlichen
Mit der "Xrostella VR1" will Sharp eine besonders kompakte VR-Brille anbieten, die als eines der wenigen Geräte am Markt über einen Dioptrienregler verfügt.

»Decreasing Certificate Lifetimes to 45 Days:
Let’s Encrypt will be reducing the validity period of the certificates we issue. We currently issue certificates valid for 90 days, which will be cut in half to 45 days by 2028.«
The @… halving the validity of the keys makes the web more secure (not more anonymous).
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Decreasing Certificate Lifetimes to 45 Days
Let’s Encrypt will be reducing the validity period of the certificates we issue. We currently issue certificates valid for 90 days, which will be cut in half to 45 days by 2028. This change is being made along with the rest of the industry, as required by the CA/Browser Forum Baseline Requirements, which set the technical requirements that we must follow. All publicly-trusted Certificate Authorities like Let’s Encrypt will be making similar changes. Reducing how long certificates are valid …

PSA: Use the "accounturi" feature of Let's Encrypt CAA!
If you're hosting a safety/security-critical service, there's a way too unknown feature called "accounturi", that allows you to restrict TLS certificate issuance to a single Let's Encrypt account (and account private key).
You simply create a CAA record on your domain and put your LE account ID into it.
This means that attackers cannot issue TLS certificates and pull man-in-the-middle…

Certificate Authority Authorization (CAA)
CAA is a type of DNS record that allows site owners to specify which Certificate Authorities (CAs) are allowed to issue certificates containing their domain names. It was first standardized in 2013, and the version we use today was standardized in 2019 by RFC 8659 and RFC 8657. By default, every public CA is allowed to issue certificates for any domain name in the public DNS, provided they validate control of that domain name. That means that if there’s a bug in any one of the many public CAs…

Creative Flourishing
Dives into the latest creative arts research and practice and asks how engaging with this might aid in human flourishing and have a positive impact upon our wellbeing...
Great Australian Pods Podcast Directory: https://www.greataustralianpods.com/creati

How to survive Instagram's algorithm as a creative
- "Instagram is wrecking my head. I have a fairly decent number of followers. But hardly anyone sees my work"
- "I have a completely organic audience, yet my posts don't reach most of my followers"
- "Instagram hides your posts unless you post a selfie or anything personal"
- "You have something new? Post it, leave and focus on more important things."
- "Do o…

How to survive Instagram's algorithm as a creative
Starting to feel invisible on Instagram? You're not alone. Here's how to protect your wellbeing while still getting some use out of the platform. Welcome to the latest in our agony aunt series, De...

This was very welcome news from Let's Encrypt today and more interesting than cert lifetimes.
"This means you can set up the DNS entry once and begin automatically renewing certificates without needing a way to automatically update DNS."
I already do DNS-01 but not having to do the dynamic updates will be appreciated.

Been looking at portfolios and CVs and Websites for people who applied for a "Creative Technologist" position.
And it's kinda disheartening to see that almost all pages and projects look very much the same.
The way that "we just focus on one dominant technology/narrative and visual language" limits people's development and horizon is depressing.

Mark Zuckerberg announces a new creative studio in Meta's Reality Labs led by Alan Dye, who will be joined by Apple design lead Billy Sorrentino (Mark Zuckerberg/@zuck@threads.com)
https://www.threads.com/@zuck/post/DR0Wsy0EhCP

Mark Zuckerberg (@zuck) on Threads
Today we're establishing a new creative studio in Reality Labs led by Alan Dye, who has spent nearly 20 years leading design at Apple.

"Total War"-Reihe geht mit "Medieval 3" weiter
Creative Assembly traut sich wieder ins Mittelalter: Das von Fans seit Jahren ersehnte Strategiespiel "Medieval 3: Total War" befindet sich in Vorproduktion.