nowfound

Dev tools · February 12, 2025

OS

Open-source RSVP app using Supabase and Flutter

I'm doing a new Show HN[1] as we have now made this open source, and got some interest in comments in the past few days. We initially built this app for some friends in a co-living community - they were using pen and paper to track who's attending lunch - but it was error-prone. First I suggested a shared Google Sheets or Calendar, but that was also messy to maintain. Eventually, I developed something just for them. They used it for a couple of years, they loved it and wanted to use it for more things, too. So I took all the learnings from what was now the MVP, and with some friends we now…

What it does

In the maker’s words, at launch

I'm doing a new Show HN[1] as we have now made this open source, and got some interest in comments in the past few days. We initially built this app for some friends in a co-living community - they were using pen and paper to track who's attending lunch - but it was error-prone. First I suggested a shared Google Sheets or Calendar, but that was also messy to maintain. Eventually, I developed something just for them. They used it for a couple of years, they loved it and wanted to use it for more things, too. So I took all the learnings from what was now the MVP, and with some friends we now launched this new version, built on Flutter and Supabase. Supabase was to give us some better control on the data; dealing with events and especially recurring events gets really messy really quickly. The data model on Firebase was horrible (so much duplications...). And Flutter to quickly offer good mobile apps for everyone, since a feedback I often got before was that the "PWA" didn't really feel like a real app at times (especially on iOS). We decided to make it open source as there'd be many possibilities to extend it, from making it more compatible with business features (say a CalDAV integration); to allowing more "rich" events and anonymous access to compete with Apple Invites or Partiful; to introducing some discovery and ticketing features and compete with Meetup or Eventbrite. [1]: https://news.ycombinator.com/item?id=42510407

Does the same job

all alternatives →
  • YN
    You Need Feeds – Introduce friends/family/workmates to RSS and webfeeds2018 · ▲205

    Partially inspired by recent discussions on HN and other places. I've made a single-focus site to introduce your friends/colleagues/neighbours/family to RSS and web feeds. https://www.youneedfeeds.com/ The site is meant to give the elevator pitch for feeds, show a newbie what feeds are and how to use them, set them up with a reader, and give them some nice starter content if they want it. So much tastemaking and newsmaking power is concentrated in the hands of Facebook/Reddit/Twitter, but I'm convinced it's because much of the general populace doesn't…

  • IR
    iPad RSS Reader App I spent 7 months on2011 · itunes.apple.com · ▲69

    This was my first attempt of making something truly appealing and useful. I've learned a lot and I'm pretty happy with the result. What do you think?

  • FO
    Finally opening signup on my education for business startup, Learndot2013 · ▲55

    HN, I've been mostly lurking, semi-active on HN for over 4 years. For most of that time, I've been working on my startup, Learndot. I have always wanted to do a "Show HN" post, but I never thought it was ready. We've now finally launched web signup and using a freemium business model. I feel I can now post and offer something to the community (a new app to try out) and hopefully get good quality feedback. Here's the site: http://www.learndot.com Would appreciate any or all thoughts: From pricing/positioning, to design/performance. The app is written in Sproutcore and backed by an API written…

  • MA
    Messagify - a private Disqus for web apps. Feedback?2011 · messagify.com · ▲26

    Hey HN, I'm a longtime reader and this is my first Show HN (exciting!) It's a collaboration between me and two friends, and we're building this upon another app we made called EmailYak, an API to receive email. We're trying something new and releasing the documentation to an app while we're still building it. We'd love feedback. Do you belong to any of these categories? 1) You've built an app with two distinct groups of users (say, people with cars and those looking for a ride) and they were able to communicate with each other. Did you expose personal email addresses? Did you send…

  • YA
    Ymappr – a todo app using mapped lists instead of regular lists2018 · ▲18

    Hello hackers, I just launched a new MVP It's a todo app using mapped todo lists instead of regular lists ! https://ymappr.com It's bugged and very beta, but I released this complex MVP in only two weeks ! (+ made while relocating from Thaïland to Vietnam, and even while being sick). Needless to say, despite the raw interface, a lot of efforts was put into this. Hope I can give you a feel of what the final product will look like, and I would appreciate some feedback In the meantime, take care! baz

  • OS
    Open-Source Real-Time Location Tracking and Sharing Project in Flutter2024 · github.com · ▲5

    Hey everyone! I’m thrilled to announce GroupTrack, an open-source project built with Flutter for real-time location tracking and sharing among users. Whether you’re keeping your family connected or ensuring safety among friends, GroupTrack offers a flexible solution for location-based features. What is GroupTrack? GroupTrack is a Flutter-based application designed to demonstrate effective real-time location tracking and sharing. It showcases how to manage continuous location updates in the foreground and background, implement geofencing, and customize maps to create an enhanced…

More dev tools this month

the category →
  • Dograh592

    The open source VAPI alternative

    Dev tools · 25d ago · dograh.com

  • Meridian530

    Don't let your work go unnoticed. Get promoted!

    Dev tools · 20d ago · meridiona.com

  • x1516

    Lovable for iPhone apps go from idea to App Store

    Dev tools · 11d ago · x1.new

  • Open-source GTM skills for technical founders

    Dev tools · 29d ago · gtmcofounder.com

  • OpenTrailPaper is open-source bike computer firmware for the LilyGO T5S3 4.7" E-Paper PRO. It supports offline maps, GPX routes, FIT recording and Bluetooth sensors.

    Dev tools · 1d ago · opentrailpaper.com

  • Nuphos380

    The AI-Native DevOps Workspace.

    Dev tools · 24d ago · nuphos.ai

Launched alongside, February 2025

the whole month →
  • Beautiful screen recordings with instant shareable links

    Growth · 2025 · screen.studio

  • Tana1,666

    Put your notes to work with voice and AI

    AI · 2025 · tana.inc

  • IG

    I was at FB/Meta from late 2013 to early 2023, mostly working in the compiler/runtime spaces. I got hit in the spring 2023 layoff wave. I immediately started making games in my newfound free time (a lifelong interest, and I even worked in AA(A?) back ca. ~2000), and in October 2023 I stumbled upon the idea of a roguelike pachinko/plinko game inspired by Luck Be A Landlord. Things snowballed quickly, I started talking to publishers, then worked like crazy through all of 2024, almost the hardest I've ever worked in my career, and launched the game in December 2024. It's sold…

    Work · 2025

  • Tanka1,410

    AI Messenger with smart reply & long term memory for teams

    AI · 2025 · tanka.ai

  • Tool Finder1,327

    Your shortcut to better software

    AI · 2025 · toolfinder.com

  • IB

    i wanted to change the habit of reaching for my phone in the morning and doomscrolling away an hour so i built an app to help me. now i have to literally touch grass before accessing my most distracting apps the app is built in swiftui, uses the screen time apis provided by apple and google vision to recognise grass or not i'd love to get your thoughts on the concept.

    Life & fun · 2025 · touchgrass.now