Invoicing engine for solo contractors — from time entry to paid in one line of flow.
Ledgerline is a design study for invoicing without ceremony. Time tracked anywhere becomes an invoice draft automatically; the invoice becomes a payment link; the payment reconciles back to the ledger. One continuous line from hours worked to money received.
The concept explores how much of small-business billing can be inferred rather than configured. No plan tiers, no seat management — a single operator, a single ledger.
Groups tracked time and billable expenses into drafts you approve, not assemble.
Every invoice is a link that reconciles itself when paid. No manual matching.
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Voice-first engineering journal that turns spoken context into searchable decision records.