Seedbank

A carbon ledger that turns supplier invoices into a monthly emissions report.

Stack
Remix · Postgres · Timescale
Version
v1.6
Role
Lead developer
Year
2024
Live
seedbank.example.com
Seedbank 1
Fig. 01

Seedbank helps a Berlin climate startup keep a ledger of every tonne it emits or offsets, entry by entry, and print the monthly report its investors ask for. The math lives in Postgres functions so the app and the export can never disagree.

Remix on the front, Postgres with Timescale for the time series, a nightly job that reconciles the ledger against the accounting export. Eight months, one designer, me.

Seedbank 2
Fig. 02 A ledger entry with its factor and total
Seedbank 3
Fig. 03 The monthly report as a table