# V1 or V2 [Singularity V1](https://github.com/tech-greedy/singularity) began as an initiative focused on onboarding a substantial volume of public datasets to Filecoin. Its success and efficacy transformed it into the most sought-after data onboarding tool within the Filecoin ecosystem. As we transition into the new era, Singularity V2 emerges. While it retains the foundational strengths of V1, V2 is an entirely reimagined implementation, boasting both feature parity with V1 and the addition of groundbreaking capabilities. ## A Brief Comparison

Feature	Singularity V1	Singularity V2
Language	nodejs + golang	golang
Installation	npm install	go install
Local FS data source	✅	✅
Remote data source	Public S3 bucket	40+ integrations
Upload / Push new file	❌	✅
Inline Preparation	❌	✅
Maintain Dataset hierarchy	✅	✅
CAR download	❌	✅
File download	❌	✅
Deal making scheduler	✅	✅
Deal making self service	✅	✅
Zero external dependency	❌	✅
Wallet management	❌	✅
Remote signer	❌	✅
Web API	❌	✅