```ruby
every 1.minute do
  rake 'cron:minutely'
end

every 30.minutes do
  rake 'cron:send_undeployed_commits_reminders'
end

every 1.hour do
  rake 'cron:rollup'
end
```

Change walrus to run every hour instead of every 30 minutes
user
```ruby
every 1.minute do
  rake 'cron:minutely'
end

every 1.hour do
  rake 'cron:send_undeployed_commits_reminders'
end

every 1.hour do
  rake 'cron:rollup'
end
```
assistant