Yein Sung

Yein Sung

Building open-source tools and ecosystems.

9 Personal projects across ecosystem, utility, and fun work.
6 Technologies represented in the current project set.
6 Open-source projects touched while learning by contributing.

dependency map

pubm asciianimesvg cluvo update-kit complete-checkpoint chkpt syncor screenize shellsuggest

Ecosystem

Publishing, reporting, and update primitives for open-source toolchains.

pubm

One-step publish to npm, jsr, crates.io, and private registries.

TypeScriptBun
Repository

cluvo

Local-first bug reporting SDK for OSS CLIs and SDKs.

TypeScriptBun
Repository

update-kit

Channel-aware self-update toolkit for CLIs.

TypeScriptNode
Repository

Utility

Focused tools for local workflows, snapshots, sync, and screen recording.

shellsuggest

CWD-aware inline zsh suggestions with instant ranking.

Rust
Repository

chkpt

Content-addressable checkpoints for fast workspace snapshots.

RustNode
Repository

complete-checkpoint

Atomic workspace + agent checkpointing with rollback.

Rust
Repository

syncor

Cross-machine directory sync via Git with content-addressed dedup.

Rust
Repository

screenize

Open-source screen recording with auto-zoom and effects.

Swift
Repository

Fun

Small experiments that keep the craft playful without becoming disposable.

asciianimesvg

Animated ASCII-art SVGs from text, with eight effects.

RustWASM
Repository

Dependencies

The projects are intentionally connected, not a random shelf of repos.

Publishing, checkpointing, syncing, and reporting tools share a bias toward local-first workflows and maintainable release paths.

pubm asciianimesvg cluvo update-kit complete-checkpoint chkpt syncor screenize shellsuggest

Contribution

Working across mature projects is how I learn ecosystems from the inside.

I've contributed to open-source projects across the stack. It's the fastest way I've found to learn how an ecosystem actually works.