Ruby

⚠️ **IMPORTANT: You must sign up and buy a ticket here to attend:** [https://groupvibe.com/](https://groupvibe.com/) **This is a curated, small-group meetup make new friends in Prague.** Each meetup brings together 4–6 like-minded people for casual conversations over brunch. We use the Groupvibe platform to organize and ensure everyone’s a good fit. 👉 **To attend, you’ll need to complete registration via this link:** [https://groupvibe.com](https://groupvibe.com) Once you register, and **buy a ticket or become a Groupvibe member**, we’ll share the exact location and match you with your group. **Why this works:** \* Smaller groups make real conversations easier \* Matching helps avoid awkward dynamics **Note:** RSVPs here on Meetup don’t reflect total attendance. Many attendees register directly via our website. This meetup is organized by **Groupvibe**, a small team passionate about helping people form meaningful friendships offline.

Let's play badminton at Sports Centre Olšanka. We'll meet at 10.40 and play for 60 minutes. If you have a Multisport card please bring it along, as it will make the court free for you and also reduce the cost for others. If you don't have a Multisport card the game will cost you a maximum of 150 crowns, probably much less. I will cover the cost of the court so please bring cash to pay me. There is a small organisation fee of 20 crowns for all players to participate in this event. Racquets can be rented for 50 crowns.

**6-a-side Football** practice at Pražačka Football artificial grass pitch. Maximum of 36 participants for 6 teams of 6. **Kick off at 12h00**. Everybody is welcome, no age, gender nor any restriction of any type to join. Cost: **90 crowns**. Please send the money using the **QR Code** stored here: https://imgur.com/a/PjU32Fi In case of any Opt-out within 24h of the session, or no show, the payment will be due (you still can ask someone to come instead of you, as your spot will be booked)

PLEASE NOTE: There is a fee 150 CZK for this event => See more details below. \*\*\*\*\* Hello Discoverers! This is walk is for all of you who stay in Prague for Easter. We will meet at the **Main Train Station** (hlavní nádraží) and take a train to Prague – Kolovraty. You will only need Prague Lítačka card or a validated 30-min ticket to board the train. From Kolovraty, we will walk across meadows, along a creek, through a couple of villages and a forest. All within the **Botič – Milíčov Natural Park**. Apart from the last 500 meters and one viewing point overlooking the cityscape in the distance, you won’t feel like being in Prague at all. In case you wonder, in the profile photo of this trip is Koniklec (*Pulsatilla*). It is a little hairy plant, blossoming around Easter, hence its English name **Pasque Flower**. Hopefully we see it in full blossom during our walk! DIFFICULTY: Easy to Medium Around 10 km/6 miles, on paved and unpaved streets and foot trails. Mostly flat, in total about 90 meters / 300 ft of elevation gain. MEETING POINT We will meet at **10:00** at the Main Train Station (the usual spot on the lower ground floor in front of the ticket office – [PHOTO](https://www.discoveringprague.cz/wp-content/uploads/2017/10/Prague-Main-Station-Meeting-Point.jpg)). If you can not find us call me at +420 739 370 212. Don’t be late, our train leaves at 10:21! We should complete the route by 14:00. The end point will be at “Háje” from where you can easily get back to the centre by the metro. As always, I have booked a restaurant for a well-deserved lunch after the walk. BRING WITH YOU * Comfortable walking shoes you don’t mind getting dirty. * An umbrella or rain coat if rain is expected * Water & snack This is a dog friendly event. \*\*\*\*\* PRICE: 150 CZK (Children < 16 free) Includes the planning, guiding and the meetup fee You can pay online on DP website here: [https://www.discoveringprague.cz/event/easter-walk-apr-5-2026/](https://www.discoveringprague.cz/event/easter-walk-apr-5-2026/) or just show up and pay in **cash** or by QR code. You can also pay with benefit cards or vouchers! Learn how at [https://discoveringprague.cz/how-to-pay-by-employee-benefits/](https://discoveringprague.cz/how-to-pay-by-employee-benefits/) \*\*\*\*\* I'm looking forward to discovering Prague with You! I wish you all Happy Easter! Filip +420 739 370 212

Who can attend this meetup: The tour is an introduction to Prague and is mainly for expats and visitors to our city but everybody who would like to join is invited. ***Important***, please also fill in the booking form on our [website](https://freewalkingtourprague.eu/en/schedule) if you are planning to come (otherwise we will not expect you). Description: Meet us by the Powder Tower, the historical gate to the Old Town and starting point of the Royal Route. Then have an educative walk through the narrow and picturesque streets of the historical center of Prague. Enjoy the unique diversity of architectural styles from Gothic to Art Nouveau. See some of the most interesting sites and get to know fascinating facts and legends of the 1000-year old capital of Bohemia. End the tour at the riverside 5 minutes away from the Charles Bridge, from which you can continue the tour on your own (or again with us) towards Malá Strana or Prague Castle. ====== Meeting point: We will be standing by the Powder Tower at the side of the Namestí Republiky square with a green umbrella in hand :) Map: https://goo.gl/maps/tzqKpZ2945S2 Price: there is no fixed price, you will be able to decide yourself how much you value the tour. If you don't know how much is best (and can afford it) we recommend 200Kč, but it really depends on you how much you contribute. Join us also on our [Facebook profile](https://www.facebook.com/freewalkingtoursprague/) :) and if you are travelling to other cities check out our friends at the [Free Tour Community website](https://freetourcommunity.com/). For any questions, please contact us at info@freewalkingtourprague.eu. Unfortunately, the meetup application does not always send us phone notifications. Reminder - only people who booked on our [official free walking tour website](https://freewalkingtourprague.eu/en/schedule) can join the tour and if the tour shows fully booked on the website it means there are no free spots. The meetup list doesn't count in this case. We look forward to meeting you, Michal, Amanda, Lana, Iva & Chris

*** **Description** Join us for the very first Pure Tea Tasting Prague event! Discover unique teas, meet fellow tea lovers, and enjoy a relaxing evening focused on wellness and mindful living. **What to Expect:** * Guided tasting of premium pure teas (including vegan and wellness-focused options) * Introduction to tea rituals and culture * Friendly conversation and community networking * Light healthy snacks **Agenda:** * 17:00 – Welcome & introductions * 17:15 – Tea tasting session (multiple varieties) * 18:15 – Open discussion, Q&A, and social time * 19:00 – Event close **What to Bring:** * Just your curiosity and good mood! All tea and snacks are provided. **Location:** Pure Spa, Le Palais Art Hotel, Prague (Details and directions will be sent after RSVP.) **Who Should Join:** Anyone interested in tea, wellness, or making new friends in Prague. All experience levels welcome! ***

Looking to meet new people and enjoy a relaxed day full of board games? Join us at Palmovka for a cozy board-gaming meet-up open to everyone — beginners, casual players, and experienced gamers! We have a big selection of games, from easy social titles to strategic favourites. You can come alone or with friends — our community is super friendly, and we always make sure nobody sits alone. Don’t worry if you don’t know the rules — we’ll happily explain everything. ✔ Friendly atmosphere ✔ Lots of games to choose from ✔ Perfect for meeting new people ✔ Come anytime during the day ✔ No registration needed entry fee 50czk (no hour limit) if you do not order anything at bar it is 100czk. Whether you want to laugh, think, or just relax after a long day, this is the perfect place to unwind and connect with others. See you at Palmovka – let’s play!

⚠️ **IMPORTANT: You must sign up and buy a ticket here to attend:** [https://groupvibe.com/](https://groupvibe.com/) **This is a curated, small-group meetup make new friends in Prague.** Each meetup brings together 4–6 like-minded people for casual conversations over brunch. We use the Groupvibe platform to organize and ensure everyone’s a good fit. 👉 **To attend, you’ll need to complete registration via this link:** [https://groupvibe.com](https://groupvibe.com) Once you register, and **buy a ticket or become a Groupvibe member**, we’ll share the exact location and match you with your group. **Why this works:** \* Smaller groups make real conversations easier \* Matching helps avoid awkward dynamics **Note:** RSVPs here on Meetup don’t reflect total attendance. Many attendees register directly via our website. This meetup is organized by **Groupvibe**, a small team passionate about helping people form meaningful friendships offline.

Let's play badminton at Sports Centre Olšanka. We'll meet at 10.40 and play for 60 minutes. If you have a Multisport card please bring it along, as it will make the court free for you and also reduce the cost for others. If you don't have a Multisport card the game will cost you a maximum of 150 crowns, probably much less. I will cover the cost of the court so please bring cash to pay me. There is a small organisation fee of 20 crowns for all players to participate in this event. Racquets can be rented for 50 crowns.

**6-a-side Football** practice at Pražačka Football artificial grass pitch. Maximum of 36 participants for 6 teams of 6. **Kick off at 12h00**. Everybody is welcome, no age, gender nor any restriction of any type to join. Cost: **90 crowns**. Please send the money using the **QR Code** stored here: https://imgur.com/a/PjU32Fi In case of any Opt-out within 24h of the session, or no show, the payment will be due (you still can ask someone to come instead of you, as your spot will be booked)

PLEASE NOTE: There is a fee 150 CZK for this event => See more details below. \*\*\*\*\* Hello Discoverers! This is walk is for all of you who stay in Prague for Easter. We will meet at the **Main Train Station** (hlavní nádraží) and take a train to Prague – Kolovraty. You will only need Prague Lítačka card or a validated 30-min ticket to board the train. From Kolovraty, we will walk across meadows, along a creek, through a couple of villages and a forest. All within the **Botič – Milíčov Natural Park**. Apart from the last 500 meters and one viewing point overlooking the cityscape in the distance, you won’t feel like being in Prague at all. In case you wonder, in the profile photo of this trip is Koniklec (*Pulsatilla*). It is a little hairy plant, blossoming around Easter, hence its English name **Pasque Flower**. Hopefully we see it in full blossom during our walk! DIFFICULTY: Easy to Medium Around 10 km/6 miles, on paved and unpaved streets and foot trails. Mostly flat, in total about 90 meters / 300 ft of elevation gain. MEETING POINT We will meet at **10:00** at the Main Train Station (the usual spot on the lower ground floor in front of the ticket office – [PHOTO](https://www.discoveringprague.cz/wp-content/uploads/2017/10/Prague-Main-Station-Meeting-Point.jpg)). If you can not find us call me at +420 739 370 212. Don’t be late, our train leaves at 10:21! We should complete the route by 14:00. The end point will be at “Háje” from where you can easily get back to the centre by the metro. As always, I have booked a restaurant for a well-deserved lunch after the walk. BRING WITH YOU * Comfortable walking shoes you don’t mind getting dirty. * An umbrella or rain coat if rain is expected * Water & snack This is a dog friendly event. \*\*\*\*\* PRICE: 150 CZK (Children < 16 free) Includes the planning, guiding and the meetup fee You can pay online on DP website here: [https://www.discoveringprague.cz/event/easter-walk-apr-5-2026/](https://www.discoveringprague.cz/event/easter-walk-apr-5-2026/) or just show up and pay in **cash** or by QR code. You can also pay with benefit cards or vouchers! Learn how at [https://discoveringprague.cz/how-to-pay-by-employee-benefits/](https://discoveringprague.cz/how-to-pay-by-employee-benefits/) \*\*\*\*\* I'm looking forward to discovering Prague with You! I wish you all Happy Easter! Filip +420 739 370 212

Who can attend this meetup: The tour is an introduction to Prague and is mainly for expats and visitors to our city but everybody who would like to join is invited. ***Important***, please also fill in the booking form on our [website](https://freewalkingtourprague.eu/en/schedule) if you are planning to come (otherwise we will not expect you). Description: Meet us by the Powder Tower, the historical gate to the Old Town and starting point of the Royal Route. Then have an educative walk through the narrow and picturesque streets of the historical center of Prague. Enjoy the unique diversity of architectural styles from Gothic to Art Nouveau. See some of the most interesting sites and get to know fascinating facts and legends of the 1000-year old capital of Bohemia. End the tour at the riverside 5 minutes away from the Charles Bridge, from which you can continue the tour on your own (or again with us) towards Malá Strana or Prague Castle. ====== Meeting point: We will be standing by the Powder Tower at the side of the Namestí Republiky square with a green umbrella in hand :) Map: https://goo.gl/maps/tzqKpZ2945S2 Price: there is no fixed price, you will be able to decide yourself how much you value the tour. If you don't know how much is best (and can afford it) we recommend 200Kč, but it really depends on you how much you contribute. Join us also on our [Facebook profile](https://www.facebook.com/freewalkingtoursprague/) :) and if you are travelling to other cities check out our friends at the [Free Tour Community website](https://freetourcommunity.com/). For any questions, please contact us at info@freewalkingtourprague.eu. Unfortunately, the meetup application does not always send us phone notifications. Reminder - only people who booked on our [official free walking tour website](https://freewalkingtourprague.eu/en/schedule) can join the tour and if the tour shows fully booked on the website it means there are no free spots. The meetup list doesn't count in this case. We look forward to meeting you, Michal, Amanda, Lana, Iva & Chris

*** **Description** Join us for the very first Pure Tea Tasting Prague event! Discover unique teas, meet fellow tea lovers, and enjoy a relaxing evening focused on wellness and mindful living. **What to Expect:** * Guided tasting of premium pure teas (including vegan and wellness-focused options) * Introduction to tea rituals and culture * Friendly conversation and community networking * Light healthy snacks **Agenda:** * 17:00 – Welcome & introductions * 17:15 – Tea tasting session (multiple varieties) * 18:15 – Open discussion, Q&A, and social time * 19:00 – Event close **What to Bring:** * Just your curiosity and good mood! All tea and snacks are provided. **Location:** Pure Spa, Le Palais Art Hotel, Prague (Details and directions will be sent after RSVP.) **Who Should Join:** Anyone interested in tea, wellness, or making new friends in Prague. All experience levels welcome! ***

Looking to meet new people and enjoy a relaxed day full of board games? Join us at Palmovka for a cozy board-gaming meet-up open to everyone — beginners, casual players, and experienced gamers! We have a big selection of games, from easy social titles to strategic favourites. You can come alone or with friends — our community is super friendly, and we always make sure nobody sits alone. Don’t worry if you don’t know the rules — we’ll happily explain everything. ✔ Friendly atmosphere ✔ Lots of games to choose from ✔ Perfect for meeting new people ✔ Come anytime during the day ✔ No registration needed entry fee 50czk (no hour limit) if you do not order anything at bar it is 100czk. Whether you want to laugh, think, or just relax after a long day, this is the perfect place to unwind and connect with others. See you at Palmovka – let’s play!

**\*\*\* We've Moved! Bold Penguin - 6555 Longshore St, Dublin, OH 43017 \*\*\*** TBD **AGENDA:** * See updates to parking below * Doors open at 5:30, feel free to come and hang out before! * Official start of the meeting is at 6:30pm * After the meeting is done, we will go hang out at a nearby space in Bridge Park! If you can, please sign up via meetup by noon the day of the meeting so we can have an estimate headcount for food :) We always order extra, so feel free to join us even if you don't get signed up! Thank you to Bold Penguin for providing the food and location! **Parking & Arrival:** **Parking:** Parking in Bridge Park is free. The closest lots are the Mooney Garage and the Hotel/Endres Garage. **Entry:** The doors to the office are to the right of PINS. The street level door and elevators lock at 6pm. If you arrive after that, someone should be there to let you in, else call the number posted. Take the elevator to the 2nd floor. Once you exit the elevator, turn right. \*\*\* We are a bunch of professionals, students, and geeks who are excited about Ruby programming language ([http://ruby-lang.org/](http://ruby-lang.org/)) and Rails framework ([http://rubyonrails.com/](http://rubyonrails.com/)) and the joy they have brought back to web development. Our main goal is to share the love of the Ruby and Rails ecosystems with anyone that is interested. We cater to everyone, whether a non-programmer through advanced Rubyists. * We give lectures on programming topics * We freely provide decades worth of experience * For full details of this month's meeting please visit [http://columbusrb.com](http://columbusrb.com)

Come out to Improving for our monthly iOS and Mac meetings. This Month's Presentation: Nothing yet. (You should volunteer). What is Cocoaheads (http://cocoaheads.org/)? CocoaHeads is a group devoted to discussion of Apple Computer's Cocoa Framework for programming on MacOS X and iOS (including the iPhone, iPad and Apple Watch). During monthly meetings, members present on their projects and offer tutorials on various programming topics. What is BuckeyeCocoa (http://buckeyecocoa.org/)? BuckeyeCocoa is a group of Objective-C/Swift developers/enthusiasts. We host monthly Cocoaheads and near-weekly NSCoder meetings in Columbus, Ohio. The meetings are free to attend. Presentations! Presenters welcome! We are always in need of people willing to present material. Any Swift and/or Objective-C related topic is welcome. Times can be 5 minutes (i.e. lightning talks) to a maximum of 2 hours. Interested? Contact info is on the BuckeyeCocoa website. To volunteer for a presentation contact us at @BuckeyeCocoa on Twitter. Follow us on Twitter! @BuckeyeCocoa (https://twitter.com/#!/Buckeyecocoa/) For more information: http://buckeyecocoa.org/

**Latest Dojo Location!** **Knotty Pine Brewing** 1765 W 3rd Ave, Columbus, OH 43212 We're going to try a new dojo location for a few weeks and see how it works Dojos are informal Python group study sessions where everyone interested in Python gathers to learn about Python, help others with Python, or just hang out. Everyone is welcome from Python beginners to experts. Bringing a laptop is encouraged (we'll have extension cords and power strips). If there's something you want to learn leave a comment on this invite so we can plan ahead. We're looking for speakers for our Monthly Meetups! Fill out the form if you are interested in presenting to the Python Community. https://forms.gle/ehSfUAC2WgR34Crq9

Pay attention! We’re delaying a week for those of you who may be on Spring break and/or celebrating the holiday. Ok, no pancakes, but waffles-a-plenty. Join the local UX and Digital Design community for a casual monthly breakfast. Look for us upstairs!

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

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!

The Fellowship of the Star Schema: Transforming OLTP Data for Power BI One does not simply build reports on OLTP data. Join us on an epic journey from the depths of raw, normalized tables to the shining halls of a well-modeled star schema fit for Power BI greatness. We will demystify the differences between OLTP and OLAP, walk through star schema vs snowflake (and why Power BI has a clear favorite), and show you the compression differences between normalized and columnar storage that will make you never look at an OLTP model the same way again. We will cover the different types of dimensions, when to use them, and how to handle Slowly Changing Dimensions without losing your mind. You will leave knowing exactly how to identify a bad model, how to convert OLTP data into a clean star schema, and how to forge relationships that rule them all. Whether you are a data wizard, a curious hobbit, or somewhere in between, your models will never be the same.