# Video #1: "An OS that proves it's itself" (5-7 minutes)

*Draft script and OBS setup (2026-10-28). Captain Bob presents; speak it in your own words, the
script is a guide.*

## OBS setup

- **Scene 1, "Talking":** webcam full frame, a lower-third title: "Captain Bob · StarshipOS".
- **Scene 2, "Terminal":** a screen capture of the terminal, with the webcam as a small corner
  inset. Use a large font (18-20 pt) and a dark theme so text reads on a phone.
- **Scene 3, "QEMU":** a window capture of the QEMU display, webcam inset.
- **Audio:** the microphone with OBS's noise suppression filter. Record at 1080p, 30 fps.
- **Before recording:** run one boot so the build is warm. Use `make -f kernel/Makefile ARCH=amd64
  qemu` (the default disks log Zuse in), and have the aarch64 and riscv64 logs from the last
  acceptance run ready to show.

## Script

**1. Hook (Talking, 0:00-0:30)**
"Most software can't prove it's the software you tested. This one checks itself every time it
boots. I'm Bob, I spent years validating enterprise software, and this is StarshipOS."

**2. What it is (Talking, 0:30-1:30)**
- Boots straight from firmware: no Linux, no libc.
- Runs FORTH, on an engine modelled on Chuck Moore's F18.
- Why a stack machine: small enough to understand completely, and to prove things about.

**3. The demo (Terminal, then QEMU, 1:30-4:00)**
- Start the boot. While it runs: "It's emulating a PC from firmware up, so give it a minute."
- Point out the POST line as it passes: `PARITY:V4_POST tests=538 pass=538 fail=0`. "538
  self-tests, every boot."
- Point out `dict_hash=0xfec8c47cfc6f437f`. Then show the same line in the ARM and RISC-V logs:
  "Three different CPUs. Same hash. Same system."
- The prompt appears: `[zuse@Hera] ok>`. "It greets its owner. No identity stick, no prompt."
- Type `3 4 + .` and press Enter: `7  ok`. "And it's FORTH: it adds."

**4. Why it matters (Talking, 4:00-5:15)**
- The validation story: evidence produced while building, not dug up afterwards.
- Content-hashed capsules: "Is this the approved version?" becomes a hash check.
- The plan: real PC next week, FPGA in November, proven cores in silicon as the long goal.

**5. Close (Talking, 5:15-6:00)**
"Next video: the first boot on real hardware, whichever way it goes. If you'd like to follow along
or help, links are below. Captain Bob, signing off."

## Description box

StarshipOS: a bare-metal FORTH operating system that tests and fingerprints itself on every boot.
538 self-tests; one dictionary hash across x86-64, ARM64 and RISC-V; no prompt without its owner's
identity stick. Built by Captain Bob.
Sponsor: *[link]* · Devlog: *[link]*

## Honesty checklist (before publishing)

- Say "in emulation (QEMU)" for anything not yet shown on real hardware.
- Say "patent pending" only for the filed provisional (the Steady State Machine).
- Say "being specified in Isabelle/HOL" for the proofs; the v4 proofs are not finished.