Stackoo: the stack engine is now OnlyArc
stackoo.dev
LaunchIndex first observed Stackoo: the stack engine is now OnlyArc (stackoo.dev) live on 4 November 2026. View its launch screenshot, category, and verification evidence.
A launch record built from evidence.
Stackoo: the stack engine is now OnlyArc (stackoo.dev) was first observed live on 4 November 2026.
Stackoo, the Stackoo Stack Engine, rebranded as OnlyArc. It provides developer-focused tooling and a stack engine for building and detecting tech stacks, with documentation at onlyarc.dev.
Its profile is classified as Saas within Technology / Developer tools.
What the launch signal contained.
- First observed live
- Previous state
- No prior non-live observation
- Last verified
- Canonical host
- stackoo.dev
- Category
- Technology / Developer tools
- Website type
- Saas
- Observed title
- Stackoo: the stack engine is now OnlyArc
- Observed description
- Stackoo was the working name of the stack engine we are building. It is now called OnlyArc, at onlyarc.dev.
- Detected technologies
- None detected
- Screenshot captured
- Evidence source
- Browser observation · Local
- Evidence confidence
- 93%
- HTTP status
- 200
A canonical launch profile for stackoo.dev.
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