business-ai
AI in real small-business operations: automation, costs, and what actually breaks.
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Valid ZUGFeRD E-Invoices From Self-Hosted InvoicePlane in Docker
Monthly recurring invoices with InvoicePlane in Docker as valid ZUGFeRD 2.3 EN16931 PDF/A-3 files, checked with Mustang CLI. Patches and gotchas.
Running Linux -
Odoo: Send a Silent Internal Copy of Every Confirmed Booking (and Why the Customer Got It Instead)
An Odoo automation rule + code server action that mails an internal copy of each confirmed rental, and the use_default_to trap that mails the customer.
Running business-ai -
“I Barely Use It” — Where $100 of AI API Credit Actually Went
A business AI assistant drained $100 of API credit while the owner swore he barely touched it. The real drivers: a 30-minute heartbeat, premium models on background jobs, and one retry storm.
Running business-ai -
Turning HTML-Only Email Receipts into PDFs with Headless Chromium
Many receipts are HTML mails without attachment. Render them to PDF with Playwright, and dodge the Gmail label gotcha that reprocesses a thread forever.
Running business-ai -
My AI Receipt Sorter Shifted Amounts by 2,000 Euros, So I Took the Numbers Away From It
An LLM misread credit card statements by up to -2,000 EUR. Now statements are parsed line by line with pdfplumber and the model only reads single receipts.
Running business-ai -
My AI Agent Invented a CLI Flag, and I Called the Error "Cosmetic"
A daily AI agent job kept failing with "unknown flag --readonly". The flag never existed. Why agents invent flags, and why --token=x beats --token x.
Running business-ai -
My AI Agent Only Saw 71% of Its Own Memory
An AI agent's long-term memory file grew to 70 KB and the bootstrap cut it at 71%. Two automatic writers caused it. How I split curated vs. archive memory.
Running business-ai -
My AI Assistant "Stopped Answering" — It Was Missing Three apt Packages
A self-hosted AI assistant went silent on a document request. Not the model, not permissions: poppler, ImageMagick and Ghostscript were missing.
Running business-ai