We build software because we love building it.

Devfinition is an independent product studio. We love technology and the craft of software development, so we make small, carefully built products and use them ourselves.

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Products

Stage Heat: setlist to Spotify & Apple Music playlists

Setlist in. Playlist out. Relive the show in your streaming app.

Search archived setlists from past concerts.
Export playlists to Spotify or Apple Music in the browser.
Web-first — no app store install required.

Web

Open Stage Heat About Stage Heat

Liminal Keys: Apple code signing with keys in Key Vault

Sign macOS apps on Macs you control while private keys stay in custody, not on disk.

Private keys stay non-exportable in Key Vault.
Liminal Console for identities, Macs, rules and audit.
Xcode and codesign keep working as usual.

Mac

Commercial beta · 60 days free after the beta

Visit liminalkeys.com About Liminal Keys

WatchTeams: Microsoft Teams on Apple Watch

A free, independent Teams client for your wrist — chats and calendar without reaching for your phone.

Free on the App Store.
Sign in on iPhone; the Watch works on Wi‑Fi or cellular.
Listed on Microsoft Marketplace for tenant consent.

Apple Watch · iPhone

Microsoft Marketplace · Independent app, not affiliated with Microsoft.

Get WatchTeams About WatchTeams

We run our own tools

WatchTeams builds are signed with Liminal Keys. The signing key never sits on the Mac that signs — custody stays in Key Vault while Xcode and codesign behave like always.

Read the WatchTeams customer story on liminalkeys.com

WatchTeams on Apple Watch: home with Chats, Teams and Settings

WatchTeams on Apple Watch: a chat thread

Liminal Keys Console overview: signing identities, rules, enrolled Macs and denials

Who's behind it

Devfinition is an independent product studio based in Spain.

Contact

info@devfinition.com