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Yuuki Yamashita

I'm an AWS Community Builder (AI Engineering) based in Japan.

Location Japan Joined Joined on  github website
The day I gave an AI a wallet — building an approval-gated shopping agent with Sonnet 4.6, AgentCore Payments, Rakuten and Stripe
_76130e67067eab4c8510 profile

The day I gave an AI a wallet — building an approval-gated shopping agent with Sonnet 4.6, AgentCore Payments, Rakuten and Stripe

#bedrock #agentcorepayments #nextjs #ai
Comments
5 min read

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Porting Apex Voice to Windows broke at every single layer (faster-whisper + pystray + pywin32)
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Porting Apex Voice to Windows broke at every single layer (faster-whisper + pystray + pywin32)

#aws #bedrock #python #windows
Comments
5 min read
Apex Voice v2 — Killing Hallucinations, Cutting Latency, and Landing on Caps Lock
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Apex Voice v2 — Killing Hallucinations, Cutting Latency, and Landing on Caps Lock

#aws #bedrock #bedrockagentcore #strandsagents
Comments
7 min read
Building a chat-based Marp slide generator with Next.js, Amazon Bedrock, and Lambda
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Building a chat-based Marp slide generator with Next.js, Amazon Bedrock, and Lambda

#aws #bedrock #nextjs #marp
Comments
6 min read
Voice Typing Anywhere on macOS — I Built Apex Voice with mlx-whisper, Amazon Bedrock, and Strands Agents
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Voice Typing Anywhere on macOS — I Built Apex Voice with mlx-whisper, Amazon Bedrock, and Strands Agents

#aws #bedrock #macos #standsagents
Comments
4 min read
I gave my AI agent a boss: a human-approval gate in Slack, over MCP
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I gave my AI agent a boss: a human-approval gate in Slack, over MCP

#ai #slack #mcp #aws
Comments
4 min read
I built a web app that overlays Niconico-style scrolling comments onto your slides (PowerPoint-ready, keyless OIDC)
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I built a web app that overlays Niconico-style scrolling comments onto your slides (PowerPoint-ready, keyless OIDC)

#nextjs #aws #lambda #webdev
Comments
3 min read
Building Fridge AI Health: An AI-Native Full-Stack App with Vercel and Amazon Aurora
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Building Fridge AI Health: An AI-Native Full-Stack App with Vercel and Amazon Aurora

#showdev #ai #aws #webdev
Comments 1
5 min read
Detect AI writing, then rewrite it human — Bedrock + Strands Agents + AgentCore Gateway
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Detect AI writing, then rewrite it human — Bedrock + Strands Agents + AgentCore Gateway

#aws #bedrock #ai #nextjs
Comments
5 min read
Never oversell, anywhere on Earth — building a global drop platform on Amazon Aurora DSQL
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Never oversell, anywhere on Earth — building a global drop platform on Amazon Aurora DSQL

#showdev #aws #database #distributedsystems
Comments
5 min read
From static slides to a postable video: finishing my LINE-style chat generator with GitHub Copilot

GitHub “Finish-Up-A-Thon” Challenge Submission
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From static slides to a postable video: finishing my LINE-style chat generator with GitHub Copilot

#devchallenge #githubchallenge
1
Comments
3 min read
Generating animated LINE-style chat slides with python-pptx + raw XML (and shipping it on Vercel)
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Generating animated LINE-style chat slides with python-pptx + raw XML (and shipping it on Vercel)

#showdev #automation #productivity #python
Comments 1
8 min read
Building Diagram AI: From Natural Language (and Screenshots) to AWS Architecture Diagrams
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Building Diagram AI: From Natural Language (and Screenshots) to AWS Architecture Diagrams

#showdev #ai #architecture #aws
Comments 3
6 min read
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