Compilers

*To join this event, you must be able to speak full sentences in Mandarin. This event is for those wanting to practice Mandarin and/or English. Here, you can chat with others and play board games in either language to improve your linguistic skills. Feel free to join our WeChat group during the event, as it is the best way to stay connected with us. If you have any questions, leave a comment on this event page. ＜中文版＞ 此活动是以聊天和玩桌游练习中文或英文，等级不限，平时有6-10位参加者。此活动微信群可在活动中加入，互相学习，天天向上。 如果您有任何疑问，请随时在活动页上留言或联系主持人

Please contact event host, Christopher, for the event location at christopher.tyrrell@ymail.com [Note: "ymail" is correct. This is not gmail]

## Rehearsal Details: Thursday evenings 6:30 p.m. to 9:00 p.m, Earl Bales Community Centre 4169 Bathurst St., just south of Sheppard, in Toronto. Email our membership chair, if you are interested in attending a rehearsal. **Lisa Taylor: 647-886-1766, [membershipchair@torontoaccolades.com](mailto:membershipchair@torontoaccolades.com)** Do you love to sing? Do you love performing for live audiences? The Toronto Accolades Chorus brings women-centric singers together to sing and perform a cappella harmony. Harmony connects people from all backgrounds, ages, and musical abilities to create a community where you can not only sing, but find a space to connect with other strong and dedicated people just like you. For decades, we've provided a venue for singers to express themselves, make quality music together, and form bonds beyond measure, and we invite you to join us for the ride. We welcome guests and work with them to find out their voice range and to determine what part (lead, tenor, baritone or bass) they would sing best. Guests are given a music folder and encouraged to participate in singing with the chorus in subsequent weeks. Although we continually strive for musical excellence, prior musical training is not necessary to belong to our chorus. We provide everyone with sheet music, audio learning tracks, education and guidance. At the end of 6 weeks, we ask each prospective member to audition, to ensure that they can hold their part in a four-part harmony song.

Python Toronto is back! Join us for our May meetup at the **Thomson Reuters office at 19 Duncan Street, Toronto, ON M5H 3H1 on Thursday, May 21, 2026 at 6:00pm!** If you are interested in giving a talk, we'd love to have you! Please fill out this form – [Submit a Python Toronto talk](https://docs.google.com/forms/d/e/1FAIpQLSfpNKB0Sbs893xp72M4TxmYGrTyLm4Nh1SSXnCqChP9mx6_9A/viewform?usp=header)! Talks are typically short, typically 5 to 10 minutes, and up to 20 minutes if you've really got something to say, and on any topic that would be interesting to a room of Python people. This can be a Python library that has helped you, a research paper you've enjoyed, or an interesting application of AI. The Python meetup is a casual, community-oriented meetup hosted by companies that use Python in Toronto. Talks are short, informal, and sometimes ad-hoc. Space is limited! Register now to hold your spot. **When / Where** * When: **May 21, 2026, 6:00pm to 8:30pm.** * Where: **Thomson Reuters Office - 19 Duncan Street, Toronto, ON M5H 3H1** Come early to enjoy **snacks** and **drinks** provided. **Code of Conduct** Python Toronto is dedicated to providing a welcoming, harassment-free experience for everyone, regardless of gender, gender identity and expression, age, sexual orientation, disability, physical appearance, body size, race, ethnicity, religion (or lack thereof), or technology choices. We do not tolerate harassment of any form. Sexual language and imagery is not appropriate for this venue, including talks, workshops, parties, Twitter and other online media. Meetup participants violating these rules may be sanctioned or expelled from the meetup (without a refund where applicable) at the discretion of the meetup organizers. Please email elaine@eswong.ca to report any issues.

Join us for an evening of French conversation at B Espresso Bar in the atrium of the Toronto Royal Conservatory of Music (near St. George station)!
We welcome all levels of French, and it's free\*.
Venez pratiquer votre français! \*While there is no fee to attend this event, guests are expected to purchase something from B Espresso Bar, in accordance with RCM's restrictions on usage of the cafe atrium space. **Building location:** The Royal Conservatory is at 273 Bloor St W, between Varsity Stadium and the Royal Ontario Museum (ROM). There are entrances off Bloor St. and Philosopher's Walk. If you enter from Bloor St through the large glass doors, follow the hallway on the left beside the staircase and turn left at the end. (Closest TTC: St. George) **Notes and restrictions:** The host may or may not attend this event. Attendees are encouraged to seat themselves at two or more adjacent tables, as needed. Please form groups of 6 people at each table; do not rearrange chairs and tables to accommodate more people, as this obstructs the narrow walking space. Guests are expected to order something from the cafe, and are asked to please refrain from bringing outside food or drink. Attendees must leave the building at 8pm when the cafe stops serving. **Contributions:** If you are a regular with us and would like to support the group, please send any contributions by e-transfer to [diskutomeetup@gmail.com.](http://diskutomeetup@gmail.com.) The yearly donation goal and amounts received year-to-date will be tracked anonymously on [this google sheet](https://docs.google.com/spreadsheets/d/18GfqYsis8Cf2XGg4KsKQJsY_0Fv3bsSQHwJAxvC1Km8/edit?usp=sharing). Thank you so much for your support.

**This is a ticketed event. Please register at [this link](https://luma.com/9cs5o16b).** ​Rubi will cover two topics at the intersection of prediction-making AI and AI alignment: 1. ​How to align prediction making AI 2. ​How to use predictions in the alignment of general agents ​This talk will discuss problems in using AI for predictions and how we might solve them, along with the implications for aligning powerful AI systems. ​​​**Event Schedule** 6:00 to 6:30 - Food and introductions 6:30 to 7:30 - Presentation and Q&A 7:30 to 9:00 - Open Discussions ​​​​​​If you can't make it in person, feel free to join the live stream starting at 6:30 pm, via [this link](https://www.youtube.com/@Trajectory-Labs/live).

Everyone is shipping "AI-powered" security. Almost no one is honest about where it works and where it guesses. This month, two DC416 organizers run the same fight from opposite corners. The Thursday talk frames it. The Friday workshop puts it in your hands. THE TALK Amir Hosseinpour covers offense. A year of pointing AI at real production code, plus everything DC416 has tried as a community. Where it actually finds bugs, where it just burns tokens and lies to you about it, and the scaffolding that gets any frontier model behaving the same way regardless of vendor. Cost numbers. The kind that make you reconsider whether that last scan was worth it. And an honest answer to when you should put the LLM down and read the code yourself. KC Udonsi covers defense. Most blue-team tooling was built assuming a human reads every alert. AI breaks that assumption in ways that are not obvious until something goes wrong. KC built his own AI-native breach detector and is running it live, in the room, against real attack data from a Wizard Spider emulation. Not a vendor demo. His own code, real data, in front of the audience. THE SPEAKERS Amir Hosseinpour — DC416 Co-Organizer Drives DC416's offensive AI experiments. Spends his weeks pointing frontier models at real production code, real CVEs, and real bug bounty surface, and writing down what actually moves the needle versus what just burns money. KC Udonsi — DC416 Co-Organizer CISSP. University of Toronto Computer Science. Co-creator of OpenSecurityTraining2's Vulnerabilities 1001 class. Inventor on a TD Bank patent for continuous verification and response platforms. Current focus: AI-native application security and where automation earns its keep on defense. DETAILS Date: Thursday, May 21, 2026 Doors open: 6:15 PM Talk starts: 6:45 PM Location: downtown Toronto, hosted by Stan **Cost: Free RSVP Here: https://events.defcontoronto.ca** WORKSHOP FOLLOW-UP Friday, May 22 — hands-on workshop, 10 AM to 3 PM, hosted by Palo Alto Networks downtown Toronto. Five hours, three mentors (Amir, KC, and Jeet). Build a red-teaming agent from scratch in the offense half, then flip sides and build the core of an AI-native breach detector in the defense half. Bring a laptop. AI access is provided. Only 50 spots available. **Cost: Free RSVP Here: https://events.defcontoronto.ca** SPONSORS Huge thank you to Stan, Palo Alto Networks, and White Tuque for making this possible.

[Summary] This meetup is for those who are interested in code, web development, design, cloud, or AI. All levels are welcome, so feel free to bring your laptop and discuss what you are working on or what you are learning. You can share your projects and ideas with other participants freely. There are outlets and WiFi, drinks are about $5 for tea, they take card only. [Price] Attendance is FREE. But you need to buy something from the venue. [Policies] \- We do not tolerate harassment of our members \- We remind users that that this meetup is intended for networking and hobby development\, and any attempts at using this meetup event as a dating platform will not be not be tolerated Further information: https://torontostack.exchange/

This is the second walk in a new series of small meetups in Toronto — feel free to join, whether this is your first time or you came to the previous one. **If you are on a Waitlist** Please feel free to still join. I have a free meet-up account, which limits me to 10 people sign up. **Meeting Plan** We’ll meet just outside the main entrance of Rosedale Subway Station at street level (I’ll be standing near the exit and easy to spot), and walk & chat through Rosedale onto the ravine trails toward Evergreen Brick Works, finishing with a coffee or a stroll through the farmer's market (happens every Saturday at Brick Works until 1pm). Having done the first event, I might bring a very light structure or conversation prompts for our walk & chat part. The main idea behind these mini-series of walks is to be outdoors, be active, meet new people, and start your weekend on a positive note. **At Brick Works** Once we get to the Brick Works, some people might want to sit down together for a coffee, while others want to stroll around the farmer's market and get some food, and some want to do their own thing. This is very flexible. You might want to bring your own tea/coffee/drink as there are plenty of spaces to sit, sip and enjoy the day. The farmer's market is very nice, but the queues were quite long, and the options are somewhat limited. I might bring my own tea in a thermos this time. **Timing** • Meet: 11:00–11:10am at Rosedale Station (we will start walking at 11.10am) • Walk: \~40 minutes at an easy pace • Coffee or farmer's market: around midday at Brick Works If it rains heavily, I might have to cancel the walk. We can bring umbrellas if it sprinkles lightly and still enjoy the outdoors. If it rains heavily, I will update the invite in the morning of the event. I’ll be there to welcome everyone. Looking forward to meeting you.

Eventbrite Link: **[https://www.eventbrite.ca/e/436240616427?aff=oddtdtcreator](https://www.eventbrite.ca/e/436240616427?aff=oddtdtcreator)** **Savor the laughter at Sizzling Saturdays! Toronto's comedy spectacle starts at 8 PM. A night of uproarious fun awaits!** Join us for a sizzling Saturday night at 8 PM! Backroom Comedy Club presents a comedy extravaganza featuring Toronto's top comedians. Immerse yourself in an evening of wit, humor, and uproarious laughter. Make your Saturday memorable—reserve your seat now for an unforgettable entertainment experience!

Let’s do some coding together at a cafe! No more working alone in the weekend. Here, we write code together. And I mean together together. Not occupying-the-same-space-but-separate together. Here’s how it works: Jennifer brings her mobile app project, tells everyone that it is like Pinterest for recipes and she’d like to work on the nav bar. Paul and Chloe think Jennifer's project is fascinating, and they join the group. They gather around Jennifer’s laptop and work on the nav bar for 2 hours. Jennifer is the one typing out the code while Paul and Chloe research, brainstorm, and offer suggestions. If you’re feeling stuck on your own project or need a motivation boost, bring it to mob programming! Want to learn by watching how others code and solve problems? Join someone else’s project at this event! Oh and we love your half-done projects that you are a bit embarrassed to share. Absolutely bring those to the event! **Discord**: We use Discord to share screen & code snippets during the event. Also feel free to share your projects here before the event! https://discord.gg/xwjDdVSw3E **Event policy**: * We have 0 tolerance for harassment. * We don’t allow the projects that are not meant to be shared in public such as school assignments, interview tasks, or trade secrets. * The goal is to write code. We discourage you from pitching business ideas here, doing code reviews, or spending the whole event on planning what to do. * Please buy a drink, and tip the barista well.

The wait is finally over! It's time to have our first ever Telugu Meetup and we can't wait to see you all at Amsterdam BrewHouse to have an amazing time together! We thought it would be ideal to have a catchup in the downtown as our first meetup as this would allow everyone to socialise, network and get to know one another. Get to the venue between 6:30 and 7 PM. The evening will start off with a bit of an intro to each other. Most importantly, we would like to hear your ideas on the type of activities and events you'd like us to organise and the locations that may suit all of us. We can hang around and then head out for dinner if time permits. Please note that there is no entry fee for this event. Its just PYO (pay your own). Please do RSVP as that would help us make the bookings. Please feel free to message us if you have any questions. Let the fun begin! Cheers

**Join [TILE.]** at the **most popular Saturday Language Learning Social Event & Party in Toronto! 🍁** **[TILE.] = Toronto International Language Exchange [Instagram](https://www.instagram.com/tilelearning/)** **[TILE.]** now has a **2-for-1 special event,** which includes: **1.** From **[6:30 - 7:15 PM](https://www.meetup.com/english-class-with-certified-award-winning-teacher):** An optional new $5 small group 45-minute **[English language class](https://www.meetup.com/english-class-with-certified-award-winning-teacher)**[ ](https://www.meetup.com/english-class-with-certified-award-winning-teacher)led by a certified language teacher **2.** From **[7:15 - 11 PM](https://www.meetup.com/biggest-language-party-event-social-in-toronto):** Our usual huge group **[BIGGEST LANGUAGE EXCHANGE SOCIAL EVENT AND PARTY IN TORONTO](https://www.meetup.com/biggest-language-party-event-social-in-toronto)** (Cost: *$5, unless you already paid for the same day 6:30 English class right before, in which which case the 7:15 social is FREE)* Both events happen Saturday on the 2nd floor of the Madison Pub (14 Madison Avenue). ***Attend either or both events for $5!*** Meet Toronto locals and international friends. Talk to language teachers and speakers to learn English, French, Korean, Japanese, Spanish, and much more! Join us for board games, conversation, dancing, singing, and more! Make sure to get a nametag from one of our helpers. *You **must** read the full event description below before attending. By attending, you agree to all the terms listed.* **[TILE.] Toronto International Language Exchange** event details: * We are on the 2nd floor of the Madison pub on the patio with all the international flags! *The dance floor opens around 10 PM, and the live piano bar singer start around 10:30 on the 1st floor.* **PAY** **$5** right at the event by **CASH, CREDIT, or DEBIT**, or **SEND $5 E-TRANSFERS** to: **TILETORONTO1@GMAIL.COM**. You can also support the bar by buying a drink or appetizer. \-\-\-\-\-\- **IMPORTANT DISCLAIMER – Meetup Group** By attending any TILE events, including these ones, you acknowledge and agree to the following: * *The organizers and hosts of TILE events are are not liable for any loss, injury, damage, or other unforeseen outcomes that may occur before, during, or after any event.* * *Participation in TILE events is entirely voluntary and at your own risk. You are solely responsible for your own safety, personal belongings, transportation, behavior, and well-being. It is your responsibility to assess the risks involved in any activity or location and to act accordingly.* * *TILE and its organizers do not provide insurance and cannot guarantee the safety, accuracy of information, or quality of venues, third-party services, or other attendees.* * *By attending, you release TILE, its organizers, and affiliates from any and all claims or liability, and you agree to conduct yourself respectfully and in accordance with local laws and venue rules.* * ***If you do not agree with this disclaimer, please do not attend TILE events.***

Come meet your people! We're a loose crew of tech hobbyists, coders, tinkerers, AI nerds, Linux geeks, self-hosters, and general wizards of the weird and cool. No agenda, no slides, no sales pitches. Just good conversation over drinks. Pull up a stool, tell us what you're building, breaking, or obsessing over lately. We want to hear about your home lab, your AI experiments, your side projects, your rabbit holes. All skill levels welcome, curious beginner or grizzled sysadmin, there's a seat for you. **Drinks are on you. Good conversation is on us.** See you there!

**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** Like it or not, AI agents are now capable of turning a quickly written paragraph of requirements into a pull request that is ready to be integrated into real-world production applications and it's now our responsibility to make sure AI doesn't go rogue and take down prod - or corrupt our data by misunderstanding the requirements or our existing schemas. In this session we'll explore strategies to protect our codebases through unit and integration testing, documentation, and code review along with additional ways of providing context and guard rails to our AI agents as they carry out the work we've assigned them to do. By the time we're done, you'll have a firm grasp of the problem and understand some helpful options for protecting your codebase from vibe coding mishaps getting YOLOed into prod. **YouTube Link** TBD

We connect you with up to 30 Men or Women tennis partners close to your PLAYING REGION and skill level. This program is less competitive, no champions crowned, no league standings just dedicated tennis partners who want to meet up with you on the courts. Players will meet up to play a tennis match or just to hit around. Just go through the [Join Page](https://www.tenniscolumbus.com/partner-program) to enter this program. [https://www.tenniscolumbus.com/partner-program](https://www.tenniscolumbus.com/partner-program)

Bring your work or your hobby, hang out, and code with us. Follow @buckeyecocoa for more information.

Whether you've never done improv before, or you've done it for so long you knew Del Close on a personal level, or anywhere in between, come join us! Swing by *Gresso's* for the **Columbus Improv Comedy Meetup** for some fun and games! The idea behind improv is to create entire scenes from scratch based on a suggestion from the audience. This can be done in game form, like *Whose Line Is It Anyway*, *ComedySportz*, or *Wild 'n Out*; it could also be done to tell stories, like *Middleditch and Schwartz*. Our meetup, which is central Ohio's longest running (and free!) weekly comedy event, brings the games (and occasionally different forms) for you to play in a safe, supportive, and compassionate environment. Not only is it a lot of fun, but you get to work on thinking faster on your feet, plus it's an excellent way to meet new people and make friendships that'll last a lifetime! Ask yourself if you want to join the **Columbus Improv Comedy Meetup**, and say "Yes, And" that you'll have fun!

**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

Most people use AI like a search box: they type one sentence, hope for the best, and get frustrated when the answer is generic, wrong, or useless. But getting better results from tools like ChatGPT, Claude, Gemini, and other AI systems is not about memorizing magic prompts. It is about learning how to give the AI better context. In this beginner-friendly session, we’ll break down how to make AI dramatically more useful by improving the way you communicate with it. You’ll learn how to give clearer instructions, provide examples, set constraints, ask for better output formats, and use follow-up questions to turn a mediocre answer into a genuinely useful one. We’ll cover practical techniques you can use immediately for work, learning, writing, coding, planning, research, and everyday problem solving. We’ll also touch on why these same ideas show up in more advanced AI systems, including RAG, agents, evaluations, and AI workflows. No technical background required. Bring your curiosity, your questions, and maybe one real task you wish AI was better at helping you with. **What you’ll learn:** * Why “better prompting” is really about better context * How to structure requests so AI gives more useful answers * How to use examples, constraints, and output formats * How to iterate when the first answer is not good enough * How these skills connect to more advanced AI workflows This meetup is for anyone who wants to move beyond basic ChatGPT usage and start getting more practical value out of AI. LOGISTICS AND PARKING: The talk starts at 7:00 PM. The first half hour is reserved for everyone to get set up and mingle. Free pizza and drinks! The cheapest parking option is to find street parking, which will only cost you a few bucks. Otherwise, park in the nearby veteran's museum lot for $8. It's highly recommended you avoid the nearby $15 garage parking.