Nahuel D'Elias · Product engineer

(W01)Work · 2025Shipped

vers1ons

The licensing marketplace for music and its versions.

Role
Early hire, product lead
Dates
2025-06 – present
Stack
Next.js · tRPC · Postgres · Drizzle · Inngest · Socket.IO · Stripe Connect · Clerk · Object storage
Links
Discover: a new drop, featured songs with their prices, and new releases.
Walkthrough · muted · 0:23Discover, publish, license, release and get paid

The decision

Remixes are everywhere in music, and almost none of them are licensed.

Chose
Make the license itself the product. Artists set the terms of a remix license and sell it themselves, and every version is tracked at the rights level, so a remix can be bought, released and paid all the way up the chain.
Rejected
Hosting remixes and sorting out the rights later, case by case.
Cost
Everything had to be built around rights first. The license, the signed agreement, payouts to every contributor, and distribution that checks the license. And the agreement had to hold up with labels' legal teams.

The bet

From grey area to market.

People remix songs all the time, but there was no simple way to license one. Without a license, a remix can’t be released to streaming or earn anything, and the original artist never sees a cent from it. So most remixes stayed unofficial.

vers1ons set out to turn that grey area into a market. Artists set their own terms and sell remix licenses directly, and every version stays tied to the rights it came from. I joined early as an engineer and became the product lead, working across product, design and engineering on every part below.

Sequencing

The license had to come first. The money came after.

Nothing else works until the license is real, so we started there, with the license as data the whole platform reads. Buying it came next, then paying every contributor their share, then releasing remixes to stores with the license checked along the way.

The design system came as the app grew, and moving every screen onto it took real work. That’s the one thing I’d do differently. From zero, I’d build the design system on day one.

Where it is

Live, with labels on board and remixes in stores.

Artists and buyers use vers1ons in production. Labels list and license through it, licensed remixes are delivered to streaming stores, and the company is raising and growing. Each part below is one piece of how it got here.

Review & Publish for Night Swim: the cover, $40.00, every step checked and Publish lit.
One license's life. An artist publishes, a buyer licenses it and releases a remix, and the artist gets paid (1:01)

Zero to one, in five parts

Each part is its own case study with its own decision.

No.PreviewPartProductDesignFrontendBackendLink
W01.1Design systemA messy app turned into one brand, built from shared parts and held in place by CI.ProductContributedDesignLedFrontendLedBackendNot involved
W01.2LicensingLicenses tracked at the rights level, from the original to every remix of a remix.ProductLedDesignLedFrontendContributedBackendContributed
W01.3PurchasingBuying a license feels the same on your phone as on your desktop.ProductLedDesignLedFrontendLedBackendNot involved
W01.4Wallet & payoutsPaying every contributor directly, with nothing in the way.ProductLedDesignLedFrontendLedBackendContributed
W01.5DistributionDistributors as partners, with royalties paid down the whole remix chain.ProductLedDesignNot involvedFrontendLedBackendLed

Versions

How it looked at each stage. Pick a version to riffle the stack.How it looked at each stage, oldest first.

A listing in November 2025: small caps, a placeholder cover, the license type and term, and two royalty percentages.The first listing. Small caps on everything, and the license was a template name, a term and two royalty numbers. This seed had no cover art.
A listing in March 2026: one stacked column, the price beside an invite code field, and the royalties as two percentages.One stacked column. The price sat next to an invite code field, and the royalties were two bare percentages.
A listing in July 2026: the song on the left, and the price, Purchase License and the license terms on the right.License first. The song on the left, the license on the right with the price and Purchase at the top, and the terms in plain sections.
A listing today: the price and royalty shares at the top, where a remix can be released, and who it's licensed by.On the system. Where a remix can be released, the royalty split and who you're contracting with, all before you buy.

Showcase content. Artwork belongs to its respective owners. Artist names, prices and figures are fictional, and no affiliation is implied. Recordings come from an isolated local copy of the product running seeded data and Stripe's test mode. The release's delivery is staged, and its ISRC and UPC are placeholders. Earlier builds ran on their own seed data, and the November 2025 seed had no cover art.