I'm a engineer and work in Japan/Tokyo.
My topic is as follows

• ⛓️ blockchain (Web3, Ethereum)
• 🪪 decentralized identifiers (DIDs)
• 🛠️ backend (Go, Python, Nodejs)
• 💡 frontend (Nextjs)
• 📱 mobile (flutter)

and I'm maintainer of

• did:content methods https://github.com/KataruInc/did-content-spec
  Ref:
  https://w3c.github.io/did-extensions/methods/

• kataru content vc api
  https://github.com/w3c/vc-test-suite-implementations/blob/main/implementations/Kataru.json