About
LeftBar is a bespoke Progressive Web App (PWA) created by the LeftBrain team as a showcase project for their rooftop summer client event. The app blends AI-driven personalisation with mixology expertise to deliver a unique cocktail experience. Guests open the app, answer a short series of AI-generated questions about their workplace tech stack and taste preferences, and within moments receive a fully tailored cocktail recipe complete with an AI-generated visual representation. To ensure the generated cocktails were genuinely drinkable, LeftBrain collaborated with award-winning mixologist Paul Martin of MIXXA, who supplied a curated ingredients list and constraints for the AI to work within. The result was nearly 300 custom cocktails served at a single event. On the technical side, the app was built without writing a line of code. FlutterFlow, a web-based visual app builder, handled the frontend and rapid development, while n8n.io managed all backend workflow automation. ChatGPT (the latest version at the time) powered the question generation and cocktail recipe creation. LeftBar demonstrates how no-code platforms combined with large language models can produce polished, interactive AI experiences quickly and accessibly. It is an excellent example for teams exploring AI-driven personalisation, event technology, and rapid no-code prototyping. While built as a one-off showcase, the architecture is replicable for hospitality, events, or any personalised recommendation use case.
Key Features
- AI-Personalised Cocktail Recipes: ChatGPT generates unique cocktail recipes tailored to each guest's taste preferences and workplace tech profile.
- AI-Generated Cocktail Visuals: Each recipe is accompanied by a bespoke AI-generated image, making the experience visually engaging and shareable.
- No-Code Architecture: Built entirely with FlutterFlow (frontend) and n8n.io (backend automation) — no custom code required.
- Expert Mixologist Constraints: Cocktail generation works within a curated ingredients list provided by award-winning mixologist Paul Martin of MIXXA, ensuring real-world drinkability.
- Progressive Web App (PWA): Accessible on any device via the browser — no app store download needed, making it frictionless for event guests.
Use Cases
- Corporate or client events where personalised, AI-generated experiences are used to entertain and impress guests.
- Hospitality and bar settings looking to offer bespoke cocktail recommendations based on individual taste profiles.
- No-code development showcases demonstrating how FlutterFlow and n8n can be combined with LLMs to build interactive AI apps rapidly.
- Event tech prototypes that blend generative AI with real-world expert knowledge for validated, high-quality outputs.
- Marketing activations where branded, personalised AI experiences create memorable touchpoints for customers or partners.
Pros
- Rapid No-Code Development: The entire app was built without writing code, demonstrating how quickly AI-powered experiences can be prototyped using FlutterFlow and n8n.
- Real-World Validated Output: Collaboration with a professional mixologist ensured AI-generated recipes were genuinely enjoyable, bridging the gap between AI creativity and practical quality.
- Highly Personalised Experience: Each user receives a completely unique cocktail recipe and visual, creating memorable, individualised interactions at scale.
Cons
- Event-Specific Build: LeftBar was created as a one-off showcase for a specific party rather than a publicly available product, limiting broader accessibility.
- Limited Scalability Documentation: As a proof-of-concept, detailed guidance on scaling or adapting the architecture for larger deployments is not publicly documented.
Frequently Asked Questions
What is LeftBar?
LeftBar is an AI-powered Progressive Web App built by LeftBrain that generates personalised cocktail recipes and visuals based on user preferences, created for their rooftop summer client party.
What technology powers LeftBar?
LeftBar uses ChatGPT for AI-driven question generation and recipe creation, FlutterFlow for the no-code frontend, and n8n.io for backend workflow automation.
How does LeftBar ensure the cocktails taste good?
LeftBrain partnered with award-winning mixologist Paul Martin of MIXXA, who supplied a curated ingredients list and constraints for the AI to work within, ensuring all generated recipes are genuinely drinkable.
Is LeftBar available to the public?
LeftBar was built as a bespoke showcase for a private LeftBrain client event. It is not currently available as a standalone public product, though the architecture and approach are documented on the LeftBrain blog.
Can this concept be replicated for other events or use cases?
Yes — the no-code stack (FlutterFlow + n8n + ChatGPT) used to build LeftBar is replicable for hospitality, corporate events, or any personalised AI recommendation application.
