Portability
Founder’s Engine — one file, anywhere, forever
On Founder’s Engine — Streams → Experiments → Runway. Revenue streams feed your runway math.
Founder's Engine is one HTML file. Not one file plus a database. Not one file plus a config folder. One file, self-contained, running the whole Engine end-to-end. You can email it to yourself and it works.
The file on a drive
USB stick, Dropbox folder, network share, encrypted container, phone. Anywhere a file can live, the Engine can live. Double-click; it opens. No installer, no dependencies, no runtime to keep patched.
This is what 'runs anywhere' used to mean before it started meaning 'runs in our cloud, from any device'.
Browsers, operating systems, and time
It runs in Chrome, Edge, Firefox, Safari. On Windows, macOS, Linux, ChromeOS. On a work laptop, a personal one, a friend's. Offline in a cabin, offline on a plane, offline on the second morning of a data-centre outage you did not cause.
The portability isn't a feature we bolted on. It is what happens when you refuse to build a back end.
Backup discipline
Because the Engine is a file, you back it up the way you back up anything that matters: a copy on your machine, one on a drive, one somewhere safe. Export the data as JSON alongside the file for good measure.
You are not delegating your backup to a vendor's status page. You are keeping copies, like a grown-up.
Where it runs
- Any modern browser.Chromium, Firefox, Safari — recent versions of each.
- Any OS.Windows, macOS, Linux, ChromeOS.
- Fully offline.Cached after first open. Airplane-mode forever.
- Any storage medium.SSD, HDD, USB, encrypted volume, network drive.
Questions people ask
Can I use it on my phone?
Yes, though it is designed for a screen wide enough to show three tabs of numbers. Read on your phone; edit on a laptop.
Can two people work on the same file?
Not simultaneously — it is a file, not a service. Pass it back and forth, or keep one canonical copy. Founder's Engine is built for the operator, not the committee.
What about backups?
The Export button writes a JSON of your data. Do that after every serious change; keep it alongside the file. That is the whole backup system.
One file, on your drive, doing arithmetic. The rest is marketing.