📷 Photography · collaborative editing

Darkroom · x402

$0.01 — pay-per-layer. Turn photo editing into a micro-transactional marketplace where every professional transform—color grade, mask, or retouch—is a paid 'pull' from a collaborator's private preset library. Each edit is an atomic transaction signed by your Magic Link email sign-in, instantly settling revenue to the contributor and committing the delta to the chain. No subscriptions, just pay for the specific human or AI expertise applied to your canvas.

Hedera testnet + x402 paywall· x402 native
Section · Onchain

The primitive.

full primer →

Access to the collaborative editing engine is metered with x402: 0.01 HBAR or 0.01 HTS USDC per call, paid from the embedded wallet, so photographers — or the agents working for them — pay per query and get a HashScan receipt every time.

Why this primitiveBy shifting from 'tracking history' to 'paying per operation,' the app turns a passive log into an active revenue engine for retouchers. x402 handles the high-frequency, low-latency settlement required for multi-layer collaborative workflows.

Kernel
an x402 v2 paywall metering access at 0.01 HBAR or 0.01 HTS USDC (token 0.0.429274) per call, paid from the embedded wallet through the relay and verified by a self-hosted facilitator against the Hedera mirror node
Drives the UI as
a 'pay 0.01 HBAR or USDC to unlock' button with a live flow log and a HashScan link for every settlement
Appendix · Secrets

Required keys.

HEDERA_OPERATOR_ID
Hedera testnet account id (0.0.xxxxxx). Create and fund it free.
open ↗
HEDERA_OPERATOR_KEY
ECDSA private key for that account, from the Hedera portal dashboard.
open ↗
REOWN_PROJECT_ID
Free project id powering the HashPack pairing modal.
open ↗
HEDERA_RPC_URL
Optional. JSON-RPC relay, defaults to the public Hashio endpoint.
open ↗
PINATA_JWT
Pins images / JSON / manifests to IPFS.
open ↗

Add these in your Lovable project under Settings → Secrets before pasting the prompt below.

Appendix · Mega-prompt

The build prompt.

Paste into a fresh Lovable project. Make sure all five secrets above are set first. read the build strategy →

Loading the mega-prompt…
Appendix · Market

Market sizing.

TAM
$8.5B
Global photo editing software and creative collaboration market moving toward granular, usage-based pricing.
SAM
$420M
Professional retouchers and digital artists adopting micro-licensing for their proprietary editing workflows.
SOM
$12M
Web3-native creators and DAOs using Base to co-produce brand assets with instant royalty distribution.

Indicative figures for hackathon pitches — refine with your own research before raising.

See also

Adjacent entries.