Amateur Astronomy

AWS meetups are back in town! This chapter is the 1st one this year and dedicated to **S3.** But we look on the storage from completely different angles: **From Developer's to Penetration and Security perspective.** More info soon, and the meantime we reveal topics, and... 🗓 **Save the Date**: Mark your calendar 🍕 + 🍺 = Let's gather around pizza and beer at **Hevre** or Watch the stream on [YouTube (Link)](https://youtube.com/live/Tx7lmDVTVKo) Hosted by: **Maciej Lelusz**, AWS Hero AWS Community Builders: **Maria Kmita & Pawel Kusinski** 🎤 **Speakers**: 〰️ *„*"Optimizing S3: A Million-Dollar FinOps Journey" **Avihay Tsayeg,** Senior Staff DevOps Engineer, Cloudinary 〰️ *„UnS3cure - Buckets full of holes"* **Paweł Kusiński,** Penetration Tester and Security Researcher 💡 Details about Speakers & Talks💡 **Avihay Tsayeg:** joined Cloudinary five years ago and is a key member of the Infrastructure group, where he leads the FinOps domain. With over 20 years of experience in software development, specializing in the DevOps–FinOps intersection, Avihay brings deep expertise in cloud cost optimization. ☞ will speak about: In his talk, he will share actionable strategies for mastering resource cost management within AWS S3. **Paweł Kusiński:** Penetration Tester and Security Researcher focused on app and cloud security. His work includes penetration tests and infrastructure audits across a wide range of IT projects. Passionate about knowledge sharing, he leads workshops, gives conference talks, teaches at universities, and is an AWS Community Builder. Outside of work, he plays CTFs as a member of justCatTheFish and has an unhealthy habit of buying too many Legos - despite having absolutely no space left for them. ☞ will speak about: Time goes by, AWS keeps adding new security features, and yet year after year, we hear about more data leaks and breaches involving S3 buckets. Data spills by the terabyte, companies apologize, and shortly after, the cycle repeats. How does this keep happening? What is the core problem? How do attackers find their targets? We’ll walk through the most common methods and configuration mistakes - and if time allows, we’ll try to secure everything properly as well! And who knows - maybe we'll uncover a million-dollar leak during the presentation?

**Beer, Pizza and IoT Meetup (DigiCert Special)** We would like to invite you to our next IoT Meetup at Concept Reply at the Reply offices in Munich. **Agenda** 19:00 – Securing the future Internet of Things with ML-KEM and ML-DSA (Talks by Kevin Hilscher and Daniel Stroehmann from DigiCert) 20:00 – Pizza & Networking **Description** Today’s Internet of Things (IoT) relies on a variety of protocols and communications technologies…CoAP, LwM2M, LoRaWAN, NB-IoT, Wi-Fi, Thread … many of which are not quantum-safe. While large-scale quantum computers capable of breaking current encryption aren’t yet available, the concept of “harvest now, decrypt later” is a significant concern. Now that NIST has released final versions of its first three Post-Quantum Cryptography (PQC) standards the race is on to make IoT quantum-safe. **We will explore** * What it takes to make an IoT solution quantum-safe. * The algorithms regulators, such as BSI, are recommending. * How to implement and transmit data between a device and an MQTT broker with TLS 1.3, ML-KEM, and ML-DSA using open-source tools. Please feel free to forward this invite to anybody who might like to take part. PLEASE NOTE: This Meetup will get streamed and recorded so you may get filmed by taking part. Doors open at 7PM for this one due to an event before. This event is exclusively for those with a professional background. Due to limited capacity, we reserve the right to restrict admission. Pizza, beer and seats first come first serve! :)

Bring your Raspberry Pi, Arduino, microcontroller, or any other electronic project and join fellow electronics makers for a night of creativity and collaboration! This session is open forum to share your current projects—whether complete or in progress, it’s all interesting! Whether you’re deep into embedded systems, exploring new ideas, or just getting started, you’ll find a welcoming space to collaborate, share, and get inspired. **New to electronics or curious about tinkering?** You’re absolutely welcome. If you’re a beginner and want to experiment, I’ll have a couple of starter kits available so you can try things out—whether that’s blinking your first LED, putting something on a display, or experimenting with simple sensors. No pressure and no experience required—just an interest in learning and building. While we continue to pursue a more permanent venue for this Meetup, we’ll be using public library facilities based on availability. This session will be at the Worthington Park Library in the Olentangy Meeting Room.

**Adults Only** Roller Skating — Don’t Miss This We’re bringing back childhood — but this time it’s adults only. Music. Lights. Good vibes. **Beginner-friendly** No experience needed — just show up and roll. This is our first paid event so we can host bigger, better experiences going forward. Limited spots. Cross posted **20 rsvp max** ✅ Adults-only session ✅ Newbie friendly (help included) ✅ Great workout (burn up to 600 calories/hour) ✅ Possible drinks after Skate Zone 71 Meet 8:20 PM (arrive before 8:35) **You will still need $13 admission + $6 skate rental** (or bring your own) bring cash I can often get us a $2 discount!

Sleep in on Sundays. When you've had your fill of pajama-time, roll out and have some tasty brunch with your fellow Humanists!

Join us as we get together to see SIRAT, an Oscar-nominated Best International Film from Spain that follows a father, accompanied by his son, goes looking for his missing daughter in North Africa. Here’s a description, trailer and our plan for this event: DESCRIPTION: A father, accompanied by his son arrive at a rave deep in the mountains of southern Morocco while searching for his daughter who vanished months ago at one of these endless, sleepless parties. As their search continues, the journey forces them to confront their own limits. The film is directed by Oliver Laxe and stars Sergi Lopez, Bruno Nunez Arjona and Richard Bellamy. TRAILER: https://www.youtube.com/watch?v=ww-IXHXvS70 BUZZ & ACCLAIM: SIRAT has already won numerous awards, including 4 at the 2025 Cannes Film Festival, along with the Chicago, Montclair and Toronto International Film Festivals! It also earned a whopping 11 nominations at the 40th Goya Awards, including Best Film and Director, and was nominated for Best International Feature Film and Best Sound at this year’s Academy Awards. The film is earning a stellar 92% positive rating on Rotten Tomatoes which calls it “an unforgettable exercise in tension” and “a brutal reminder that the journey can be more important than the destination.” PLAN: We’ll plan for a 7pm-ish showing and will confirm/announce details as the date gets closer. Once showtime is confirmed, advance purchase (via GFC website preferred) is advised! Once you have your ticket, please list your seat number in the Comments section of this event. PARKING: Close, convenient parking is available in the nearby garage (located between 9th and 11th, just off High St). Bring your ticket with you and have it validated at the theater and for $2, you’re covered for the night! Look forward to seeing you there, Dan