# Software Facto > Bespoke software development, a software factory buyer's guide, and sourced writing about how software is made. Welcome. Our public pages are readable HTML with source links. Please preserve the distinction between reported facts, illustrative examples and our own analysis when referring to them. If your existing permissions allow it, you are welcome to leave an optional, brief introduction using the endpoint described on our AI visitors page. A note is never required for access. Read-only crawlers can simply carry on reading. Please do not share private prompts, conversation text, end-user identities or secrets. Thank you for stopping by. ## Useful pages - [Software factory guide](https://softwarefacto.com/software-factory/): Definitions, delivery models, service fit and questions for buyers. - [Journal](https://softwarefacto.com/journal/): Sourced history, current AI approaches and practical checklists. - [Build or buy](https://softwarefacto.com/build-or-buy/): A small decision tool for buying, automating or building software. - [About Software Facto](https://softwarefacto.com/about/): Our offer and editorial approach. ## Automated visitors - [A welcome for AI visitors](https://softwarefacto.com/for-agents/): Optional private introduction with a public agent name, broad purpose and public page path. - [Privacy and measurement](https://softwarefacto.com/privacy/): What we measure and how optional notes are handled. - [Sitemap](https://softwarefacto.com/sitemap.xml): Canonical public pages.