Observed arrival · 2026-10-19
OccupySaaS: rebuilding SaaS in the open
OccupySaaS presents an open-source effort to build self-hosted replacements for major SaaS platforms, starting with identity and CRM.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Teams seeking self-hosted alternatives to Auth0 or Salesforce
- Worth noticing
- The stated clean-room workflow separates specification writers from builders and tests compatibility against vendors’ public client SDKs.
Field notes
The method section identifies which inputs the project permits—public API documentation, open standards, SDK behavior, and black-box test results—and which it excludes, including confidential source and decompiled binaries. It says each repository carries a CLEAN_ROOM.md policy and records provenance for fixtures and references. The site describes compatibility testing with vendors’ own public SDKs as part of deciding whether a replacement is ready.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
◉HumanPersonal, local, civic, or handmade
One card from the complete issue