Vault Desk
Your files, encrypted before they leave your device.
About
Vault Desk is an end-to-end encrypted drive. Everything is encrypted on your device — the server only ever stores ciphertext and wrapped keys. Not even we can read your files.
A full drive that the server can't read
Upload, organize, share, and recover your files. Every operation happens over data that's already encrypted on your device.
End-to-end encryption
Each file is encrypted client-side with XChaCha20-Poly1305 before it's uploaded. The server stores only ciphertext.
Passwordless-safe login
OPAQUE means your password never leaves your device — not even hashed. The server can authenticate you without ever seeing it.
Secure sharing
Share a file and its key is sealed to the recipient's public key. Revoke access or change roles whenever you like.
Public links
Share with anyone. The decryption key lives in the link itself (after the #) and never reaches our servers. Add a password and an expiry.
Key Transparency
Recipients' public keys are published in a tamper-evident, append-only log — so the server can't quietly swap in a key it controls.
Account recovery
Forget your password? A one-time recovery key restores access — without us ever holding the keys that decrypt your files.
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FounderPlaybooks.
What other founders did to grow.
2722 dispatches from hundreds of founders, pulled from the week's best podcasts.
You have a place your users are going every day, which isn't always the case for all apps. There's no meditation store people are going to every day. I wonder if fitness apps have tried partnering with gyms. Find the adjacencies.
Look for adjacent high-velocity venues your users already pass through
The retail QR play only works when your users already pass through a physical or digital venue with high frequency. Generalize: hunt for the high-frequency adjacent place your category already funnels through — gyms for fitness apps, headphones for music apps — and that's your partnership target.
I noticed around 10 to 15 downloads per day from posts that got anywhere from 200 to 500 views... my product was so unique and it solved a very specific pain point that no other app solved it converted very well on my organic post even though they didn't get that many views... you don't need to get millions of views like you think you might need to do if you can get 5 to 10% conversion ratio on views.
Niche Apps Convert At 5-10 Percent On 200-View Videos So Stop Chasing Virality
Ethan's first organic videos pulled only 200-500 views but drove 10-15 installs each. When your product solves a hyper-specific pain no other app addresses, you can skip viral mechanics entirely — reach is replaced by relevance. Niche viewers convert at 5-10%, an order of magnitude above generic apps.
There's a play for whatever you're stuck on.
Read all 2722 playbooks
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