·
Builders & Technical Leaders
Joshua Mo
DevRel Engineer |Playgrounds
Self-taught Rust developer and DevRel Engineer at 0xPlaygrounds, contributing to Rig—an open-source Rust SDK for LLM agents and RAG pipelines. Broke into tech via Shuttle's Heroes program in 2022; his viral 'Next.js and Rust' article hit HackerNews with 100k+ reads and landed him a full-time DevRel role at Shuttle.rs.
Videos
Video Appearances
3
Biography
Deep Research
Joshua Mo is a self-taught Rust developer turned DevRel Engineer at 0xPlaygrounds, where he contributes to Rig, an open-source Rust SDK for building LLM-powered agents and RAG pipelines. He broke into tech in late 2022 by joining Shuttle's Heroes program after teaching himself Rust from the book—his March 2023 article on Next.js and Rust went viral with 100k+ hits and hit the HackerNews front page, landing him a full-time DevRel role at Shuttle.rs by Q3 2023. At 0xPlaygrounds he now builds experimental AI tooling (rig-experimental, braindump, bolter) and advocates for practical, open-source AI systems over speculative AGI narratives.
RAG pipeline optimizationmulti-agent AI systemstransformer inference optimizationLLM orchestration frameworkscontext engineering for LLMsagentic workflow designvector database integrationAI application architecturedeveloper tooling for AIon-chain AI agent systems
Timeline
5 Research4 GitHub9 total
Key Contributions
Rig — Rust AI Agent SDK
Core contributor and DevRel for Rig, an open-source Rust SDK by 0xPlaygrounds for building LLM-powered agents, RAG pipelines, and multi-agent systems.
'Next.js and Rust' article (100k+ hits)
Viral technical article that hit HackerNews front page with over 100,000 reads, directly landing Joshua his first paid tech contract at Shuttle.rs.
'Can Rust Beat JavaScript in 2023?'
Viral piece reviewed by ThePrimeagen that established Joshua's voice in the Rust community and drove 10x traffic growth for Shuttle.rs.
braindump
An ergonomic, opinionated memory interface for AI agents, enabling persistent and structured agent memory in Rust.
bolter
An experimental agent runtime with sandboxed tool execution for safer, more controlled AI agent deployments.
5 sources(click to expand)
Research generated March 20, 2026
Builders & Technical Leaders/Joshua Mo
All Profiles