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[ARTICLE ยท art-51011] src=flareover.com โ†— pub= topic=developer-tools verified=true sentiment=โ†‘ positive

Show HN: 1-Click Migration Solution

Flareover, an open-source migration tool, reads existing edge configurations from providers like Cloudflare and rebuilds them faithfully on EU-based servers using self-hosted software such as Caddy and PowerDNS. The tool never guesses on config mappings, flags ambiguities for user decisions, and includes a parity gate that blocks cutover unless behavior is identical. This provides a lock-in-free, deterministic migration path with no egress fees.

read2 min views1 publishedJul 8, 2026

flareover reads your existing edge setup โ€” DNS, TLS certificates, redirects, WAF rules, caching โ€” and rebuilds it faithfully on your own EU servers (open-source, self-hosted). It never emits config that silently changes how your site behaves: what it can't map exactly, it asks about or flags โ€” it never guesses.

โ— AGPL-3.0 ยท self-hostable ยท no lock-in

Every element of your edge gets exactly one verdict. Behavior-changing config is emitted only when equivalence is proven or you answer a bounded yes/no. That honesty is the product.

A provably-equivalent target mapping exists. Config is generated.

A faithful mapping exists with one enumerable ambiguity. A single yes/no resolves it โ€” cached, reviewable.

No faithful mapping (arbitrary edge code, ML bot-scoring). Surfaced with a reason, never guessed.

Read-only extraction to a gated, reversible cutover. Every step is deterministic; the parity gate blocks the flip unless the new edge behaves identically.

The engine tells you exactly what carries, what needs a decision, and what it won't touch โ€” before anything changes.

$ flareover assess zone.snapshot.json

โ•ญโ”€ flareover ยท assessment ยท example.com โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ•ฎ
โ”‚ 43 elements   โ— 31 AUTO   โ— 11 ASK   โ— 1 MANUAL
โ•ฐโ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ”€โ•ฏ

 MANUAL  (1)
  โ— config-rule  tweak features on /api  โ†’ โ€”
     Provider-only edge feature (email obfuscation): no Caddy equivalent.

 ASK  (11)
  โ— dns  A app.example.com  โ†’ powerdns
     ? Real origin (host:port) behind the orange cloud?

 AUTO  (31)
  โ— tls  hsts  โ†’ caddy
  โ— waf-custom  block bad UA  โ†’ caddy-waf
  โ— redirect  apex โ†’ www  โ†’ caddy

A real zone was migrated and cut over off its old managed edge, then verified end-to-end. The parity gate first blocked a divergence, and only passed once the new edge behaved identically โ€” these are the checks it ran:

GATE: PASS no behavior-changing divergence โ€” cutover permitted.

No traffic or egress fees. No exposure to a future price or policy change. Every target is tagged with its jurisdiction, so the migration provably stays EU-scoped.

Concern Tool where
Authoritative DNS PowerDNS EU
Reverse proxy ยท TLS ยท HTTP/3 Caddy free
WAF caddy-waf free
Edge cache souin free
Certificates CertMate ยท Let's Encrypt / Actalis EU CA option
Object storage (S3-compatible โ†’) MinIO no egress fee
Landing zone refurbished bare metal โ†’ Proxmox โ†’ LXC EU

The same 0% FP discipline migrates S3-compatible object storage (R2, S3, โ€ฆ) onto sovereign MinIO. The engine maps the configuration; rclone copies the data โ€” into the EU, with no egress fee. A public bucket is never made public without your explicit yes; an IAM policy is flagged, never guessed.

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