Ship LogFinance & Accounting
Budget Periods, Purchase Orders, Invoices, and Contracts in One Ledger
The same dollar, counted the same way everywhere
September 14, 2026 · 1 min read
Arc Theory / JournalIdeas & things made
Journal
Inside the thinking & the work.
Things I’m noticing. Things I’m building. Articles on systems, people and AI, alongside ship logs showing the problems, decisions and details behind the software.
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Observations. Experiments. Working software.From the practice of Arc Theory.