Show HN: I wrote an open source SEC filing compliance package

A developer has released secfiler, an open source tool that automates SEC filing compliance by converting structured data into SEC-required XML formats, eliminating the need for expensive proprietary software. The project emerged as a natural extension of work involving SEC data parsing, with the creator building the ability to both read and write SEC-compliant documents. ---

Companies and individuals operating in the United States must file documents with the Securities and Exchange Commission in compliance with strict regulatory formats. The typical workflow involves taking structured data and transforming it into SEC-mandated XML schemas—a process that traditionally requires licensing expensive proprietary software with limited flexibility and customization options.

To address this gap, an open source alternative has been developed: secfiler. The tool enables developers to handle SEC filing compliance programmatically without reliance on costly third-party solutions.

How the project came about

The creator's primary focus involves working with SEC data at scale, which required building capabilities to parse SEC XML filings and decompose them into usable database tables. Rather than developing this parsing logic in isolation, the natural next step was to create the inverse functionality—converting tabular data back into compliant SEC XML formats. This reverse-engineering process gave rise to secfiler as a complementary open source tool.

Those interested in SEC data manipulation more broadly may also find value in the creator's other project, datamule-python, which handles broader data processing tasks related to SEC filings.

Source: Hacker News Show HN

Show HN: Blik360 – open-source 360 feedback (self-host alternative to Lattice)

Blik360 is a new open-source platform providing self-hosted 360-degree feedback capabilities as a cost-effective alternative to commercial services like Lattice. The tool allows organizations to manage performance reviews from multiple perspectives while maintaining complete control over their data. It appeals to companies seeking customization options and independence from subscription-based HR software.

Rethinking open source mentorship in the AI era

GitHub's Abigail Cabunoc Mayes argues that open source mentorship models must adapt to the rise of artificial intelligence in software development. As AI tools reshape how code gets written, the industry must reconsider how experienced developers guide newcomers and what skills remain most valuable in an increasingly automated landscape. ---

An update on Steam / GOG changes for OpenTTD

The OpenTTD team has clarified that their recent decision to place the free game behind a paywall on Steam and GOG was a mutually beneficial compromise with Atari, not the result of coercion. New players must purchase Atari's Transport Tycoon Deluxe re-release to access OpenTTD on those platforms, though the game remains free via direct download. Atari will contribute funding toward OpenTTD's infrastructure costs, and the developers emphasized that the open-source project retains full independence while honoring the original game that inspired it. ---

Related Articles

Show HN: Blik360 – open-source 360 feedback (self-host alternative to Lattice)

Rethinking open source mentorship in the AI era

An update on Steam / GOG changes for OpenTTD