Lightning Components Development

**BitDevs Bitcoin Socratic Seminar Berlin @ c-base Raumstation** Join us for our monthly interactive **[Bitcoin Socratic Seminar](https://bitdevs.berlin)** in Berlin! We’ll start with pizza and beer (sponsored by [Ordimint.com](https://ordimint.com)), followed by deep-dive discussions on the most interesting *technical* developments in Bitcoin from the past month. Participation by everyone is highly encouraged! Our goal is to foster lively discussion, knowledge sharing, and debate. In the weeks leading up to the event, participants gather topics such as: * New research papers * New BIPs and BOLTs * Network statistics * Technical blog posts * Mailing list and Delving Bitcoin threads * Pull requests and updates from key repos (Bitcoin Core, LND, Core Lightning, Eclair, BDK, rust-bitcoin, LDK, Electrum, …) Each topic is briefly introduced by our moderators and then discussed before moving on. The full list of links will be published at [bitdevs.berlin](https://bitdevs.berlin) 1–2 days before the event — please review them in advance to get the most out of the discussion. **Important details:** * This event is highly technical — best suited for those with a solid grasp of Bitcoin internals. Curious newcomers are always very welcome, but expect in-depth conversations (see the former topics at [bitdevs.berlin](https://bitdevs.berlin)). * Chatham House Rule applies: you may share what was discussed, but not who said it. No livestream, no photos, no recordings. * The evening begins with food and networking; people often stay after the seminar to keep talking. **Co-hosted by:** * [Felix](https://x.com/FelixWeis) * [Freerk](https://x.com/freerko) * [Fabian](https://x.com/fjahr) For background on the idea of BitDevs Socratic Seminars, see [this article](https://bitcoinmagazine.com/articles/op-ed-want-to-learn-about-bitcoin-try-a-local-socratic-seminar).

Hello Gophers, Welcome back for another year of Go talks and networking! Would your company like to host our meetup? Let us know! If you'd like to give a talk - submit your proposals here: http://goo.gl/forms/54YvJT223F All talk formats work: short talks (5-10 min) as well as regular length (25 min). If you have more ideas - talk to us at the Gophers slack: https://invite.slack.gobridge.org/ in the #berlin channel, and follow us on twitter: https://twitter.com/gdgberlingo **Speakers**: *Simon Schulte* is a Tech Lead with nearly a decade of experience building scalable backend systems across fast-paced product companies. With a background in business informatics and a passion for Golang, cloud infrastructure, and DevOps, he has spent his career solving complex engineering challenges. He is particularly excited about leveraging AI and LLM workflows to eliminate the tedious, repetitive work that slows developers down — think tech debt, boilerplate, and documentation — so engineers can spend their energy on what actually moves the needle. For Simon, AI isn't about replacing developers; it's about giving them back their time. *Daniel Peralta Madriz* is a backend engineer from Costa Rica with around 6 years of experience working with Golang, although, sadly, he's been spending most of his time lately working with Node.js :(. He is interested in distributed systems, scalability, and developer experience, and is currently experimenting with how to leverage LLMs to safely and autonomously execute repetitive tasks. *Michael Morgen* is a Platform/infra engineer by day, runtime and network optimizations by night. Join in person at: **Talon.One** Talon.One is the incentives engine behind 300 of the world’s most-loved brands, unifying loyalty and promotions on a single flexible platform. Their customers run millions of real-time incentive decisions across markets, channels, and use [cases.As](http://cases.as/) incentives become more strategic than ever, they are continuing to raise the bar for what businesses can build and how fast they can build it Wiener Str. 10, 10999 Berlin https://maps.app.goo.gl/8eMjgWes1E4TBA3c7 or virtually at: https://www.youtube.com/live/qh__TQ1bMF0?is=hw21pk0ZE3HGyaaT *** Agenda 10:49 PM: Networking Networking over drinks and food 7:30 PM: Welcome Welcome words from the organizers 7:35 PM: Talk 1: Go-ing Against the Chaos: Deterministic LLM Workflows / Daniel Peralta Madriz (Backend developer) & Simon Schulte (Techlead of Webhooks and Notifications) @ Talon.One LLMs are powerful, but “it works most of the time” isn’t good enough for production. In this talk, we’ll walk through how to design deterministic workflows around non-deterministic models using Go. From structured iteration loops to validation steps and guardrails, you’ll learn how to move beyond prompting and start engineering reliable LLM-powered systems 8:10 PM: Announcements and break Announcements, HR lost & found, open mic 8:30 PM: Talk 2: About Go Memory Allocator / Michael Morgen, Platform/infra engineer @ Mirantis A short talk about how Go gives memory to your program. We will look at the main allocator parts, why small allocations are usually fast, when Go asks the OS for more memory, and a couple of simple examples where this knowledge helps performance. 9:05 PM: Networking Networking over drinks and food *** Hosted By Natalie Pistunovich, Organizer Ole Bulbuk, Organizer Tim Scheuermann, Organizer Anderson Queiroz, Organizer Complete your event RSVP here: https://gdg.community.dev/events/details/google-gdg-berlin-golang-presents-hybrid-may-golang-meetup-1/.

🕢 Doors open at 18:30 and sessions start at 19:00. Freestyle vocal workout at and play session. €8-20 😌 Flow is a state of being… an experience when you allow yourself to be 100% fully engaged in the present moment in a feedback loop between clarity and satisfaction. It is an undeniable sensation where things seem to be more effortless, pleasurable, in sync, and you can easily sense a connection with something greater than yourself; this is what we will create…: • a connected and mindful meditation where it is possible to blissfully surf the cutting edge of the present moment together… • a game where it’s possible to feel excited and calm in the same moment, and everyone can win as much as they like… Scott Bolden, founder of Das Baumhaus Berlin will share some very easy, practical and effective methods developed during the last 12 years of facilitating the “Improvisational Groove Orchestra” (I.G.O.) improv vocal jam sessions. Within 20 minutes participants learn to use the common sound space to create resonance in the form of improvisational music where it is quite common to experience some real flow moments… It is very easy to participate, no musical talent or training is required so anyone is welcome to join. All of the session is done with eyes closed to avoid visual distractions and keep focus on the co-created sound space. During these sessions we will also have short breaks for feedback and refreshment. Important – Please be on time. It is very important to understand the methodology and warm up in the group before joining in! 🎤 @21:00 - Freestyle vocal workshop and practice session. €8-15 Have you ever wanted to learn how to do freestyle vocalizations? Maybe you are on your way and would like to just have a fun workout session with other vocal freestyle enthusiasts. All levels welcome. Links to sound samples - https://www.baumhausberlin.de/events/flow-a-guided-vocal-sound-bath-meditation/

"No half-thruths, just naked minds” Welcome to the comedy show where you can see unfiltered comedians speak their thruth since almolst 5 years! Their topics can range from their last sexual encounter to why they hate chickens and how to win a fight with a chesse sandwich. So expect any kind of material from clean to the very dark. Each comedian will have between 5-10 minutes to make you laugh. The show is located in the Kollektiv Bar Kleinod on Niemetzstr. 24 in Neukölln - open for all of those who appreciate cozy art nights and a fine selection of drinks and good mood. The space is limited, so the early bird catches the worm - get a reservation for your own good! Doors: 19:30 Show: 20:00 Get your free reservation now & pay what you want for the show! *Reservations are only kept until 19:45, so please arrive before that for assured seating. Instagram: @ultracomedyberlin9 Facebook: https://m.facebook.com/ultracomedyberlin Support: https://www.patreon.com/ultracomedy

**Demo Drop** 🔊 **@ Bohnengold --** We'll be hosting a longer, more relaxed session this week. Come and share a demo that you're currently working on or share a completed track with our community and get feedback in a friendly and supportive setting. Or just come and socialise and listen to the latest works from other producers. You can register to share some music here: https://forms.gle/xaF7sPBNpjAVPeY98 Note: * IF YOU'RE SHARING MUSIC, YOU MUST CHECK IN WITH THE HOSTS WHEN YOU ARRIVE TO CONFIRM YOUR SIGN UP! * Due to time limitations, we might not be able to play all tracks. * Long tracks will be faded out at 5 minutes **Agenda:** 7pm - Arrive, socialise and network 7:30 - Begin the Demo Drop sharing session 10/11pm - Bohnengold DJ sets to follow We’re very excited to host another event at **Bohnengold**. They have an amazing club space with a fantastic sound system. We will be running a longer event this week until Bohnengold DJs come on at 11pm. Note: Bohnen Gold will be opening an hour early for our event so any drinks purchased will help cover the extra staffing costs for the venue. This is a free event for our community. It is open to producers of all genres, skill levels, and backgrounds. Whether you’re an experienced producer or just starting out, it’s a welcoming space to connect with others, exchange ideas, and find inspiration. All genders, ages, genres, and DAWs are welcome. Invite friends or collaborators if you like, and help us continue building Berlin’s vibrant community of music producers. We look forward to seeing you there. Stay connected: Telegram group: [https://t.me/musicproducersberlin](https://t.me/musicproducersberlin) Instagram: [@musicproducersberlin](https://www.instagram.com/musicproducersberlin/)

**RSVP free on the [343 Labs website](https://343labs.de/events/pirita-masterclass/) to reserve your seat!** In this masterclass, we’ll talk about how to create for yourself some of the growth opportunities you’ve been looking for in your artist career. Topics include hosting your own live show, songwriting/production, and monetizing your skills, among others. **About the Artist:** Pirita is an artist, songmaker and producer based in Berlin. She writes groovy, alternative pop with dark and ethereal tones, inspired by artists like The Weekend, Faouzia, Tame Impala, Cassyette and Hozier. Pirita independently organized her first ever Berlin show, “Melancholia”, in January 2026. The show introduced a darker and more melodramatic artist persona. She is now producing her first EP to mark the beginning of a new stylistic era. In the meanwhile she’s active on social media, posting her singing and development as an artist. **Links:** Listen to [“Nothing on Earth” on Spotify](https://open.spotify.com/track/0ciWg0SGBWfn6LRYptl5z9?si=ADC_asKDTZqaxG1E69GBPw) [Songwriting lessons](https://tr.ee/BQJLUnTOQ8) [I’ll sing on your project](https://tr.ee/CZr40Hy40A)

Prerequisites: None! Wednesdays 19:00-21:30, May 13-July 1 Class Show: July 8 [https://www.improvworksberlin.com/book-online](https://www.improvworksberlin.com/book-online) All the world's a stage: learn to make it yours! In this beginner's acting course, we introduce you to the tools needed to bring scripted theater to life. Working with a range of techniques, we aim to demystify acting and enable students to approach texts with a sense of wonder and play. Together, we’ll create a conscious, supportive space where we’ll focus on bringing our own experience and imagination to the text, making strong choices, and working together with our scene partners. We’ll empower each other with the “Freedom to Fail,” thereby unleashing our inner creativity. Over 8 classes, we’ll explore the principles of scripted acting primarily through two-person scene work. The concepts of presence, agreement, trust, commitment and support are fostered through large and small group exercises. By the end of the class, you’ll be well-prepared to perform short two-person scenes. You'll also have a ton of fun and make new friends! In the end-of-class show, you’ll get to show off all you’ve learned to an invited audience of family and friends. Prerequisites: None! Wednesdays 19:00-21:30, May 13-July 1 Class Show: July 8 Spots are limited in these small classes, so sign up soon! [https://www.improvworksberlin.com/book-online](https://www.improvworksberlin.com/book-online)

🔥 **Roast Battle Berlin #44** 🔥 **2026 Tournament – Round 9** **WHO IS BATTLING?!** **Theo Mason Wood** vs. **Gino Christofaro** **Younes Benslaoui** vs. **Thomas Spitzer** **(RBL Barcelona)** **Divya Mirlay** vs. **Christoph Schmid** **Mahir Berghash** vs. **Lukas Paul Bela** Guest Judges: **TBD** **WHAT EVEN IS A ROAST BATTLE?** A **roast battle** is like a boxing match but with words, two opponents trading hilarious, brutal insults in front of a live crowd. No punches, just punchlines. The sharper the joke, the louder the laughs. It’s comedy at its boldest, raw, fearless, and ridiculously funny. Made famous on Comedy Central and now a global sensation, there are zero limits, so expect wildly unfiltered, unapologetically non-PC jokes. **WHERE IS THIS HAPPENING?** **The Wall Comedy Club**, Grünberger Str. 84 **WHAT TIME?** Doors: 22:45 **Show starts: 23:00** Show ends: 00:15 **HOW MUCH FOR ALL OF THIS FUN?** **Free Reservations Online** **\*It's a pay what you want show** (recommended amount 10€) \*\*Reservations are voided at 23:00  **Part of the official international roasting league –** the premier shit-talking league in the world. With **16 cities worldwide competing**, this is global comedy at its most ruthless. The best battlers from around the world step in, throw down, and prove who’s got the sharpest tongue. Want more? Catch all the action, behind-the-scenes chaos, and top-tier insults at www.rbl.live www.youtube.com/@RoastBattle **The A League – STANDINGS**  **The B League – Knockout Tournament**  Produced and hosted by **Dave Adams** @daveadamsisok and **Christoph Schmid** @topf.comedy **Follow our IG @roastbattleberlin to see competitors in the running, group scores and battle clips**

Join this Professional Communication session — to sharpen the skills for architectural pitches, elevator pitches, interviews. This time we meet in the Monbijou park. 💡 How it works The event is split into two parts: 1. **Communication (10 minute rounds)** – One participant answers a round of design and behavioral questions. Each other participant gets to ask him one question. 2. **Feedback Round** – The group provides feedback on communication, structure, and clarity. Constructive criticism is encouraged. 💡You will be asked: * **Light design problems** (high-level reasoning, not code) * **Behavioral questions** (“Tell me about yourself”, “Describe a challenge you faced...”) No need to prepare anything in advance — just bring curiosity and an open mind. 💡Note: location is the entrance to Monbijou park

Welcome to our cosy Godot Engine Community Meetup A Maze Edition! This is not a structured meeting, but rather a friendly get-together. We will hang out, chat and maybe show some of our current projects! 🦜 This is an open event and we will hang out at c-base afterwards, so it is fine to come late. Regardless if you are an artist, designer, programmer, beginner, hobbyist, professional or anything in between: join us for sharing knowledge, creating art together, coding together, joining game jams together and having fun! 🌼 This meetup will happen at [c-base](https://c-base.org), Rungestraße 20, 10179 Berlin. 🛰️ You can also join us on [our Discord Server](https://discord.gg/Sm3CgrqqQa). ☎️ Follow us on [Mastodon](https://mastodon.gamedev.place/@GodotUserGroupBerlin) for updates. 📢 Also check out [our website](https://godot.berlin). 🌐 Please be [excellent to each other](https://godotengine.org/code-of-conduct/)! 🕊️

Book a ticket [HERE](https://www.epiccomedyberlin.com/weekly-shows?utm_source=meetup&utm_medium=referral&utm_campaign=dark-thoughts-meetup-berlin-sales&utm_content=listing-main-v1&target=weekly-shows&show=dark-thoughts&city=berlin) A Berlin comedy show where Berlin's top stand up comedians take your suggestions and generate hilarious sets on the spot! ★★★★★ DOORS 10:45 PM SHOW STARTS 11 PM ★★★★★ ★★★★★ENGLISH-SPEAKING★★★★★ Finally, something Netflix can't match! The Darkest Thoughts Comedy Berlin show offers you the audience a chance to get immediate comedy based on any topic you can think of. This interactive comedy show opens with a short and funny conversation with the host about what themes interest you today. Then there is a short break where you get another drink and write down whatever you want us to improvise about in the second part related to the themes we discussed. Then a lineup of the best Berlin comedians will come in and improvise standup comedy on the spot with your notes! It's gonna be funny, interesting comedy show generated straight from your thoughts! This is a donation-based show (Recommended donation 10-15 Euro) so entry is free but we recommend you reserve your seat as seating is limited (reservations valid until 15 minutes before the show starts.) So reserve now and let the Darkest Thoughts Comedy show pluck some funny directly from your mind!

\*\*\*Doors 10:45 pm Show Starts 11pm\*\*\* \*\*\*Taking place at Zosch bar in Mitte\*\*\* (English-Speaking) In the deep watches of the night, the hilarious few crawl from their crevices and gather in one spot for all manner of heathenistic rituals. Well, just one really. Stand-Up Comedy! Everything is a little more raw and risky after dark so if you're looking for wild experiences once the sun goes down, look no further! This is a donation-based show so entry is free but seating is limited so we recommend you reserve a seat, which is FREE to do! Book now! Book a Free Seat Reservation [Here](https://www.eventbrite.com/e/after-dark-comedy-at-zosch-a-late-night-comedy-show-in-berlin-tickets-365696135987)

Welcome to Sunday Tech Coffee. This is a **networking** event for those in the tech industry in Berlin. We are usually inside and to the right. Ask the barista/bartender if you can't find us.

Unser Verein berlinCreators e.V. trifft sich jeden Freitag ab 18 Uhr im Makerspace. Wir haben Gruppen rund um Elektronik, 3D-Druck, Nähen, Programmieren, Retro Computer. Egal ob Anfänger oder Profi – hier seid Ihr Willkommen. Ihr könnt mit anderen fachsimpeln, Euch inspirieren lassen oder auch mit unserer Hilfe Eure ersten Projekte starten. Wenn Ihr Euch bei uns wohlfühlt und Mitglieder bei den berlinCreators werden möchtest, freuen wir uns. Kommt vorbei, lernt den Space, uns und die Möglichkeiten kennen.

**Important time note:** Please plan on arriving between 5:30 and 6:00 as the elevators lock after 6 and you'll need to message us and we'll need to come get you. The building address is 4450 Bridge Park The entrance is 6620 Mooney St, Suite 400 You will need to scan your ID at the door to get a visitor badge. **Abstract** TBD **YouTube Link** TBD

PLEASE NOTE!!! This event will be In-Person for our very 1st Improving collab! If you know the [Columbus Unity group](https://www.meetup.com/columbus-unity-user-group/) location, we'll be at the same place. This is our 1st event and are doing a soft launch with limited attendance. 1st come 1st serve. If you want to be there and we fill up, please email me at [info@thecogg.com](mailto:info@thecogg.com) and I'll be in touch. All street parking is free on Sundays but you can also pay to park in any of the local garages. See image of [parking map here](https://drive.google.com/file/d/1Mr9_LFIggbs-0_Zd3AJTGNqEhgMf2TzQ/view?usp=sharing). \-\-\- On the last Sunday of the month, we're having our usual end-of-the-month social gathering with our GameDev Meetup meeting. There will be announcements and presentations followed by some social networking Let's continue the conversations with good vibes and friends. All are welcomed from all ages and backgrounds to this public event. If we can, we'll be streaming or uploading the video later via our COGG YouTube channel here: [https://www.youtube.com/@TheCOGG/streams](https://www.youtube.com/@TheCOGG/streams) (Also please do subscribe if you have not done so!) No game development experience required! If you are interested in doing a 20 minute game development related presentation, please fill out our form online here: [https://goo.gl/forms/lVdTJZiNJewlPJuj1](https://goo.gl/forms/lVdTJZiNJewlPJuj1) Or e-mail us at info@thecogg.com with the following: Your Name, Company/Affiliation, Name of Your Game/Topic, Description, Tech Needs, and Your Contact. Be sure to check out our Discord for real time news updates: [https://discord.gg/NrBhuNQ](https://discord.gg/NrBhuNQ)

FREE event [https://www.ccad.edu/chroma](https://www.ccad.edu/chroma) Friday, May 15, 3–7 p.m. CCAD campus, 60 Cleveland Ave, Columbus, OH Join Columbus College of Art & Design for *2025* *Chroma: Best of CCAD*, our annual campuswide exhibition showcasing outstanding student work from across the college’s academic programs. This faculty-juried show features select work from CCAD students of all class years, and is a can’t-miss end-of-year campus celebration recognizing their tremendous achievements. It’ll be a night of fun and entertainment, with interactive games, animation and film screenings, art symposiums, poetry and prose readings, and more (along with some of the best local food trucks). *Chroma* is free and open to all. Many exhibitions including... **Game Art & Design:** **DSB, first floor, Welcome Center lobby and Room 115**

Rev. Steven Clevenger is an ordained spiritualist minister with over 40 years experience as a Spiritual Healer, Clairvoyant and Spiritual Teacher, educated and trained at the White Lily Chapel. Rev. Siobhan Wolf Shaffer is an ordained spiritualist minister and certified medium and healer with over 20 years experience. She began her development in 1988 in Pennsylvania and continued when she moved to Ohio in 1998 where she studied at Rays of Lights Church with Rev. Steven Clevenger. Our full worship services consist of an inspirational lecture, healing meditation, and messages from the spirit world that serve to demonstrate evidence of eternal life. Please visit our Official Church Website (http://raysoflightchurch.com) for more information.

**Building a great product is one thing—building momentum behind it is another.** Join **Senior Product Manager Adam Solaiman** and **User Experience Manager Tyson Smith** for a behind-the-scenes look at what it takes to turn complex ideas into scalable products inside large organizations. In this session, they’ll share how teams move from ambiguity to execution—navigating organizational complexity, aligning stakeholders, and continuously evolving products after launch. You’ll walk away with insights on how to: * Build and sustain momentum across teams * Adapt to changing priorities without losing direction * Scale products thoughtfully in complex environments Whether you're driving a new initiative or growing an existing product, this conversation will give you practical strategies to keep things moving forward. Come connect, learn, and swap stories with fellow product professionals. \-\-\- Food and drinks will be provided by Switchbox, our generous host. Free parking will be available at the front and back sides of the Switchbox Office.

Columbus Code & Coffee is an inclusive, informal co-working session. People of all skill levels attend, and we love it that way. Many people (optionally) bring projects to work on, and many other people (optionally) socialize the entire time. It's entirely up to you! **What to Expect at the Intro Circle** \~\~\~\~\~\~\~\~\~\~\~\~\~ Near the beginning of the event (1:30 pm), we do a standup: * Organizer announcements, updates, and logistics Round 1 - (7 secs max): * Your name * What you're working on * What you can help others with Round 2: * Community events you wanna plug. If none, that's cool too. Round 3: * Job opportunities you're hiring for OR announce that you are looking for one. If none, that's cool. After the introduction circle, everything is self-organized! Feel free to work alone, pair up, attend one of our workshops/presentations, or mingle!

Our monthly PHP meetup. A virtual shindig courtesy of Zoom. Check back here for the details around 6:15 pm