Static hosting with a subdomain
The fastest way to put your vibe-coded app live. Text the link to friends — then watch traffic and iterate in chat.
Documentation
Simple steps to launch your project
Register on the website, save your token, deploy from your project folder.
Use public / private to control who can open the link.
Use virtual data tables when the app needs to save data — no database setup.
Two modes
Live link first. Tunnel when you’re still editing. Deploy to share with friends, or tunnel your laptop on the same URL while you tweak.
Localhost tunnel for live demos
Keep the same public URL, but tunnel it to your laptop. Demo a work-in-progress live — when you stop, traffic falls back to your last static deploy.
Install
Install the d0 CLI once per machine:
$ curl -fsSL https://dayzero.run/install.sh | bash
Or install the npm package:
$ npm i -g @dayzero_run/d0
For a one-off command without a global install:
$ npx @dayzero_run/d0 deploy
Set your API token
Copy the token from your account page, then activate d0 from your terminal.
$ d0 token 71710a7c4311d19c2501846eb0ff5676…
Token saved
API: https://api.dayzero.run
Default subdomain: vp-a1b2c3d4
URL: https://vp-a1b2c3d4.app.dayzero.run/
- Required before
deploy,public,private,tunnel,tables, andsite-key. - Do not share your token to others.
Publish your UI
Run from your project folder. d0 detects the static publish directory
(dist/, build/, or project root), uploads it, and prints the live URL.
Uses your default subdomain from registration — no name to pick.
Sharing defaults to public. Pass private to require a 6-digit access code.
$ d0 deploy
Detected static site at ./dist
Deploying to subdomain: vp-a1b2c3d4
Deploy succeeded
Live at: https://vp-a1b2c3d4.app.dayzero.run/
Visibility: public
URL: https://vp-a1b2c3d4.app.dayzero.run/
$ d0 deploy private
Detected static site at ./dist
Deploying to subdomain: vp-a1b2c3d4
Deploy succeeded
Live at: https://vp-a1b2c3d4.app.dayzero.run/
Visibility: private
URL: https://vp-a1b2c3d4.app.dayzero.run/
Access code: 482913
- Needs a static site with an
index.html. - HTTPS is included on the live URL.
d0 deployandd0 deploy publicboth leave the site open.
Make your site private
Lock the live URL behind a 6-digit access code without redeploying. Visitors see a code gate until they enter the code printed here.
$ d0 private
Visibility: private
URL: https://vp-a1b2c3d4.app.dayzero.run/
Access code: 482913
Share the URL and code with people who should view this site.
- Each
privatecall generates a fresh code. - Share both the URL and the access code.
Make your site public
Remove the access gate so anyone with the link can open the site. No redeploy required.
$ d0 public
Visibility: public
URL: https://vp-a1b2c3d4.app.dayzero.run/
- Clears the access code immediately.
- Same command as
d0 deploy publicfor sharing only (no upload).
Live demo from your laptop
Forwards your public subdomain to a local server while the command is running. When you stop it (Ctrl+C), traffic falls back to the last static deploy.
$ d0 tunnel
Tunnel online for vp-a1b2c3d4
Forwarding https://vp-a1b2c3d4.app.dayzero.run/ → localhost:3000
Press Ctrl+C to stop
- Default target is
localhost:3000. - Override with
d0 tunnel --target localhost:5173. - Start your local app in another terminal first.
Check your project
Shows the linked project name, URL, sharing mode, deploy status, and whether a tunnel is online.
$ d0 status
Name: vp-a1b2c3d4
Slug: vp-a1b2c3d4
Mode: static
Status: live
Access: private
Code: 482913
URL: https://vp-a1b2c3d4.app.dayzero.run/
Tunnel: offline
Create table schema
Create or update project tables from a JSON file. The CLI changes schema only. Use the JS SDK and site key to read or write rows from the frontend.
{
"tables": [
{
"name": "waitlist",
"fields": [
{ "name": "email", "type": "string", "required": true, "unique": true },
{ "name": "name", "type": "string" }
]
}
]
}
$ d0 tables apply
Created table waitlist
Applied 1 table(s) on my-app (1 created, 0 updated)
Site key: sk_…
Put the site key in your frontend. Never put the API token there.
- Looks for
tables.json,dayzero.tables.json, or.dayzero/tables.json. - Field types:
string,number,boolean,datetime,json. - Also available:
d0 tables listandd0 tables show waitlist.
Print the public site key
Prints the project site key for Dayzero.init. This key is public and belongs in frontend code.
$ d0 site-key
Site key: sk_…
Dayzero.init({ siteKey: "sk_…" });
- Never put the account API token in the frontend.
- Rotate the key in the dashboard if a site is abused.
Show usage
Prints the command list in the terminal, including deploy, tables, site-key, tunnel, and status.
$ d0 help