castlehub
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launching this week

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Nothing launched yet this week. Be the first.

new in the castle

  • andreasof9@andreasof9
  • breakrecordz@breakrecordz
  • Jhonatan@tbelt

slack · #builds

share your launches to #builds

Open any project and hit “share to #builds”: the message is copied and Slack opens, ready to paste.

castlehubcastlehub

Where SkyCastle builders post work in progress, launch projects and find people to build with.

feeddiscoverlaunchpadhackathonsworldcastle wallroulettepublish a project

castlehub · キャッスルハブ · made with by abou bakar for skycastle builders

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hackathons
accepting builds

Cancel Any Subscription

make the build to replace any subscription based application, use vibeflow to build any tool and share.

opens Thu, Nov 5, 2026, 12:00 PM UTC · closes Sat, Nov 7, 2026, 12:00 AM UTC

submit your build →

the brief

Build your own version of a tool you pay for, or one you would pay for if you could. Open VibeFlow at skycastle.ai, build only the
features you actually use, and post your live build on Slack in #builds with the price of what it replaces.

prizes

1000$
500$ most useful picked by skycastle team
250$ most crowd reactions
250$ best first comer

builds 1

newestfeatured first
  • onepdf

    pdf editor, merger and other edits you can do like organize, reorder

    Abou Bakar