Radius is a new platform that serves as an alternative to Meetup.com, enabling users to discover and create communities, groups, and events for various activities.
Hello HN!<p>I'm relaunching Radius [1] - far too long after the original Show HN [2] (I'll blame the day job for that).<p>Radius started out from my frustration with not knowing what was going on around me. The initial plan was to "show all and every type of event" from big to small, but over time I narrowed the focus to communities, groups, events, and helping people connect through them.<p>The initial Show HN gave me 150+ comments (surprising, looking back, given how terrible the plain Bootstrap UI was...) with a huge amount of useful feedback and feature requests. I've spent the time since then working through that, along with additional requests from groups using Radius, and it finally feels ready for a proper relaunch.<p>I've also recently added "Activities" [3] - which are lightweight events, independent of groups, intended to help people find others to do things with - for example:<p>> John is going for a cycle and a coffee in New York at 10am<p>People can join and vote for a time that works for them.<p>I've got a bunch of ideas for where to go next with this, including things like open sourcing and federation, but those are for another day!<p>Any feedback would be greatly appreciated!<p>P.S. it's built with Ruby on Rails, for those interested. I highly suspect it would have taken me 2 more years to get to this point without Rails!<p>[1] <a href="https://radius.to/" rel="nofollow">https://radius.to/</a><p>[2] <a href="https://news.ycombinator.com/item?id=40717398">https://news.ycombinator.com/item?id=40717398</a><p>[3] <a href="https://radius.to/documentation/activities/post-an-activity" rel="nofollow">https://radius.to/documentation/activities/post-an-activity</a>
# Meetup Alternative for Groups, Events and Activities | Radius
Source: [https://radius.to/](https://radius.to/)

## Find yourcommunity\.
Connect through groups, events and activities\.

Sarah K\.created a new event inLondon Run Club
### Saturday Morning 10K, Hyde Park
Saturday, Apr 12 at 8:00 AM
·

Alex T\.created a new group
A community for creative technologists exploring the intersection of art and code\.
### Creative Code London

Jamie W\.created a new event inEdinburgh Tech Meetup
### Building with Rails 8: Lightning Talks
Thursday, Apr 10 at 6:30 PM
·

Priya M\.joinedOxford Cycling Club
### Post what you're up for
Takes 30 seconds\. No commitment required\.
What best describes you?
✓ Doing this soon — others welcome
Open to meeting others interested in this
[Post an activity](https://radius.to/activities/new)
Hyper\-local discoveryBETA
## Meet others through interests\.
Coffee, a run, a bike ride: post it with a time and place\. People nearby who share that interest can join you\.
What others see

Sarah K\. is cycling this Saturday in Edinburgh, others welcome
Easy pace, coffee stop included
🚴Cycling• just now
## Discover groups and communities
Browse hundreds of groups across cities worldwide\. Find your people, join a community, or start your own in minutes\.
[Browse all groups](https://radius.to/groups)
## Start your community\.
Free\. Simple\. Set up in 60 seconds\.
[Start for free](https://radius.to/users/sign_up)
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