Car Browser Lyric Sync

Show line-synced Spotify lyrics in Tesla and other in-car browsers, self-hostable

Problem

Driving with Spotify and no lyrics is genuinely painful. Tools like Lyricify lack a browser version, in-car browsers make login and typing awkward, and there's no way to fix wrong lyrics.

Solution

A self-hostable web player layer that syncs scrolling lyrics to Spotify playback progress, prefers NetEase for Chinese songs and LRCLIB for English ones, and lets users manually correct lyric candidates. In-car login is done by scanning a QR code from a logged-in phone, with long-lived cookies.

Users

Owners of browser-equipped cars like Teslas, music lovers who enjoy lyrics while driving, and self-hosting enthusiasts

MVP

Spotify auth and progress sync; line-by-line scrolling lyrics; automatic source selection and manual switching; phone QR-code login for the car; shared lyric correction flow.

Revenue

Open-source core plus a hosted subscription ($3–5/mo) for no-setup use; affiliate traffic from car accessories and music content partners.

Why now

The installed base of browser-equipped smart cars is growing fast, while automakers and Spotify have little incentive to serve this edge case. Indie devs can cover it cheaply with existing lyric sources and self-hosting.