Damin Mutti - DEV Community

Damin Mutti for ZeraBooks

Oct 24

Designing an AI general ledger: the model proposes, deterministic code disposes

#ai #typescript #architecture #fintech

4 min read

Damin Mutti for ZeraBooks

Oct 24

Splitting loan payments into principal and interest with Decimal, and generating the journal entries

#python #accounting #fintech #tutorial

4 min read

Damin Mutti for ZeraBooks

Oct 24

A pre-flight validator for QuickBooks Online bank CSV uploads

#python #csv #quickbooks #fintech

4 min read

Damin Mutti for ZeraBooks

Oct 24

Bank reconciliation as code: deposits in transit, outstanding checks, book errors and one assertion

#python #accounting #fintech #tutorial

1

5 min read

Damin Mutti for ZeraBooks

Oct 24

Wells Fargo statements: using the half-empty 'Ending daily balance' column as a free parser test

#python #pandas #fintech #datascience

5 min read

Damin Mutti for ZeraBooks

Oct 23

A sales tax payable tie-out in 50 lines of Python, for more than one jurisdiction

#python #accounting #tutorial #finance

5 min read

Damin Mutti for ZeraBooks

Oct 23

Parsing RBC and TD chequing statements in Python: year-less dates, header-mapped columns and a balance proof

#python #fintech #csv #accounting

5 min read

Damin Mutti for ZeraBooks

Oct 22

Bank statement analysis in pandas: netting out own-account transfers before you average deposits

#python #pandas #fintech #datascience

4 min read

Damin Mutti for ZeraBooks

Oct 22

Proving a parsed brokerage statement: the cash check and the position check in Python

#python #fintech #dataengineering #accounting

4 min read

Damin Mutti

Oct 22

Splitting a business card statement by cardholder, and keeping year-to-date totals out of the rows

#python #fintech #parsing #accounting

3 min read

Damin Mutti

Oct 20

Modeling a chart of accounts: number ranges, types and a CSV import format

#typescript #datamodeling #accounting #csv

6 min read

Damin Mutti

Oct 20

A line-item schema for invoice extraction (and the checks that catch bad reads)

#typescript #ocr #datamodeling #accounting

6 min read

Damin Mutti

Oct 20

Parsing financial statement PDFs: parentheses, comparative columns and subtotal checks

#python #pdf #dataengineering #accounting

1

6 min read

Damin Mutti

Oct 20

Detecting gaps and overlaps when merging monthly bank statements

#python #data #accounting #fintech

6 min read

Damin Mutti

Oct 20

Validating a Xero bank CSV before import: a small checker in plain JavaScript

#javascript #node #accounting #csv

6 min read

Damin Mutti

Oct 20

Nonprofit books as a data model: two extra dimensions on every ledger line

#accounting #datamodeling #nonprofit #python

4 min read

Damin Mutti

Oct 19

A restaurant month as double-entry data: prime cost, tip liabilities and delivery gross-up

#accounting #python #datamodeling #smallbusiness

4 min read

Damin Mutti

Oct 19

Modelling a month-end close as a state machine, with a lock date and an undo log

#accounting #architecture #typescript #fintech

1

4 min read

Damin Mutti

Oct 19

Finding the month a bank balance broke: reconciliation as a data integrity check

#accounting #python #data #fintech

4 min read

Damin Mutti

Oct 19

Parsing credit card statement PDFs: signs, detail lines and a total that has to tie

#python #pdf #dataengineering #fintech

4 min read

Damin Mutti

Oct 19

Three-way reconciliation as a data integrity check for law firm trust accounts

#accounting #sql #dataengineering #fintech

4 min read

Damin Mutti

Oct 19

An AI agent that does the books without touching the database

#ai #agents #typescript #accounting

1

7 min read

Damin Mutti

Oct 19

Using the printed closing balance as a checksum for OCR'd bank statements

#python #ocr #pdf #fintech

4 min read

Damin Mutti

Oct 19

A proof of cash validator in 40 lines of Python: every row and every column has to tie

#python #accounting #csv #fintech

4 min read

Damin Mutti for ZeraBooks

Oct 18

A break-even model for bookkeeping costs: when does a hire beat a freelancer?

#typescript #smallbusiness #accounting #modeling

1

4 min read

Damin Mutti for ZeraBooks

Oct 18

The trust account invariant: one bank balance, many owners, and the check that catches commingling

#accounting #python #datamodeling #realestate

1

4 min read

Damin Mutti for ZeraBooks

Oct 18

Building a construction WIP schedule in Python: percent complete, over and under billing, and the month-end entry

#accounting #python #construction #datamodeling

4 min read

Damin Mutti for ZeraBooks

Oct 18

Pairing inter-account transfers across bank statements with pandas

#python #pandas #dataanalysis #fintech

4 min read

Damin Mutti for ZeraBooks

Oct 17

Writing a transaction CSV that Google Sheets imports correctly: locale, decimals and formula injection

#csv #googlesheets #python #fintech

1

4 min read

Damin Mutti for ZeraBooks

Oct 17

Migrating books between providers: tying opening balances to bank statements, with uncleared items

#accounting #python #datamigration #fintech

4 min read

Damin Mutti for ZeraBooks

Oct 16

Parsing OFX bank files by hand: SGML without end tags, GMT dates and backwards card signs

#python #parsing #fintech #xml

1

4 min read

Damin Mutti

Oct 15

Parsing QFX files: an annotated sample, FITID dedupe, and the pitfalls that bite

#parsing #fintech #python #dataengineering

1

4 min read

Damin Mutti

Oct 15

The software stack a small CPA firm actually runs, one job at a time

#accounting #productivity #saas #smallbusiness

4 min read

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