Mindsurf

Stratospheric internet for Germany via HAPS (High Altitude Platform Systems) — solar-powered gliders at 20 km altitude delivering 5G connectivity.

Repository Contents

File	Description
index.html	Landing page — waitlist, plans, coverage check
mindsurf.py	5G digital twin simulation (signal power validation)
config.js	Firebase configuration
firebase.json	Firebase Hosting configuration
requirements.txt	Python dependencies for the simulation

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Hosting the Landing Page

Option A — GitHub Pages (simplest)

1. Push this repo to GitHub.
2. Go to Settings → Pages.
3. Set source to Deploy from a branch, branch main, root /.
4. GitHub will publish the site at https://<your-username>.github.io/<repo-name>/.

To use a custom domain, add a CNAME file at the repo root containing your domain (e.g. mindsurf.io) and configure your DNS accordingly.

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Option B — Firebase Hosting

Requires the Firebase CLI.

npm install -g firebase-tools
firebase login
firebase deploy --only hosting

The site will be live at https://mindsurf.web.app (or your custom domain configured in the Firebase console).

Custom domain: Firebase Console → Hosting → Add custom domain.

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Option C — Any Static Host (Netlify, Vercel, Cloudflare Pages)

The landing page is a single index.html with no build step. Drop the repo into any static hosting service:

• Netlify: Connect the GitHub repo, set publish directory to . (root), deploy.
• Vercel: vercel --prod from the repo root.
• Cloudflare Pages: Connect repo, framework preset = None, build output = /.

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Running the 5G Simulation

mindsurf.py simulates a complete 5G signal chain through an urban CDL-C fading channel using Sionna (NVIDIA's link-level simulator).

System: 3.5 GHz · 256-QAM · 2×2 MIMO · 50 MHz BW → ~150 Mbit/s

Install dependencies (GPU recommended, Google Colab works well):

pip install -r requirements.txt

Run:

python mindsurf.py

Output: Three constellation diagrams showing transmitted → faded → equalized signal recovery, plus BER validation confirming LDPC achieves zero errors.

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Project Status

Waitlist open — infrastructure launch pending HAPS operator deployment readiness (Airbus Zephyr / HAPSMobile / Aalto HAPS).