Which is easier to vibe code: Docker or Fly.io?

Fly.io — it scores 12/100 vibecodeable (Don't bother) versus 4/100 for Docker.

How long would it take to vibe code Docker vs Fly.io?

Docker: Years of systems programming work. Fly.io: Years of full-time systems engineering.

Can you replace both Docker and Fly.io with one vibe-coded app?

Each report on this page includes a starter kit — stack, build guide and paste-ready AI prompts — scoped to a personal-use rebuild. Start with the easier one and extend it.

Vibe arena

Docker vs Fly.io

Which one could you actually vibe code yourself? Same methodology, two verdicts, side by side.

Docker

Accelerated Container Application Development

4/ 100

Impossible

Effort: Years of systems programming work

Full report →

Fly.io

Computers for agents and full-stack applications

12/ 100

Don't bother

Effort: Years of full-time systems engineering

Full report →

The verdict

Fly.io is the easier vibe code — 12/100 (Don't bother) against 4/100 for Docker.

Share Share

Community vote — which would you rather vibe code?

Docker

Fly.io

4/100

Vibecodeability

★12/100

Years of systems programming work

Estimated effort

Years of full-time systems engineering

—

SaaS bill you'd replace

Usage-based (~$5-20/mo typical)

Hard parts

Can't-replicate moats

★3

The case on Docker

You cannot build a personal clone of Docker because its core value requires cross-platform hypervisor engineering and kernel-level container orchestration.

Hardest parts

Cross-platform kernel virtualization translating Hypervisor.framework (macOS) and WSL 2 / Hyper-V (Windows) networking, volumes, and file locking
Hardware-level microVM isolation (SEV-SNP, TEE) for executing untrusted AI agent workloads without host OS compromise
Operating a massive distributed OCI-compliant registry with petabytes of storage, cryptographic signing (Cosign), and CDN bandwidth

Full Docker report + starter kit →

The case on Fly.io

Building a functional clone of Fly.io's global cloud platform is impossible for a solo developer because it requires owning bare-metal hardware and writing custom hypervisor orchestration layers.

Hardest parts

Custom Linux kernel tuning and Firecracker micro-VM isolation on bare metal
Global Anycast networking, low-latency edge routing, and distributed state
Secure WireGuard tunnel mesh across multi-tenant production clusters

Full Fly.io report + starter kit →

Docker vs Fly.io: FAQ

Which is easier to vibe code: Docker or Fly.io?: Fly.io — it scores 12/100 vibecodeable (Don't bother) versus 4/100 for Docker.
How long would it take to vibe code Docker vs Fly.io?: Docker: Years of systems programming work. Fly.io: Years of full-time systems engineering.
Can you replace both Docker and Fly.io with one vibe-coded app?: Each report on this page includes a starter kit — stack, build guide and paste-ready AI prompts — scoped to a personal-use rebuild. Start with the easier one and extend it.

Scores come from VibeItYourself's standard pipeline: we scrape each site, deep-research the business, and grade rebuild feasibility 0–100 with the same rubric for every app. How scoring works.

Reports last verified: Docker — 2026-08-02 · Fly.io — 2026-08-01