A hack day your team signs up for, lunch included.
The right Friday, real ideas, every diet covered.
How it works.
River finds the Friday with the fewest conflicts, seeds ideas from your backlog and Slack, builds the event page with judging, and fills the lunch and prize carts.
Set the weeks and budget
Name the weeks that could work and roughly what to spend on lunch and prizes.
River sets up the hack day
Ideas from someday issues and Slack threads, a sign-up Sheet, rules, a schedule and three ways to win.
Carts and invite ready
Lunch for every diet and the prizes in carts with totals, and the invite drafted.
What you get.
- An event page with the schedule, rules, judging categories and prizes pictured
- A sign-up Sheet seeded with 15–20 ideas from your backlog and Slack
- Lunch and prize carts filled, plus the invite and announcement drafted

Start in three steps.

Get River
Download the app for your computer.

Sign up as an engineer
When River asks your role, choose Engineer.
- Playbooks
Engineer
Start a playbook and River works through it with you in the chat.
StartWrite release notes from what shippedRiver turns what shipped into a changelog page, a team post and notes to the customers who asked.StartWrite the incident reviewRiver rebuilds the timeline from Slack, deploys, errors and tickets, then drafts a blameless review.StartPlan a hack dayRiver picks the day, gathers ideas, sets up sign-ups and judging, and fills the lunch and prize carts.Start “Plan a hack day”
Press + in your Dock, open Playbooks, and press Start. River suggests the Friday with the fewest conflicts and a budget per person.
A few things to know.
How does it handle allergies at lunch?
It reads diets and allergies from Slack and past catering orders, and picks a lunch with every one of them covered.
Where do the hack day ideas come from?
Your backlog’s someday issues, idea threads in Slack and customer requests, written up as pitches people can sign up for.
What does it cost?
It uses your plan’s AI credit, like everything else in River. You pay for lunch and prizes at each store’s checkout, up to your per-person budget.
View pricingMore for engineers.
All engineer playbooksTry it on your own work.
Download River, choose Engineer, and press Start on “Plan a hack day”.

