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Achievement: Pair Extraordinairex2Achievement: Pull Sharkx3Achievement: YOLOAchievement: Quickdraw

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Organizations

@gdsc-ssu @Ongi-Team @Team-po @weavegate @WeaveTrail

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jaeunda/README.md

Deterministic cores for nondeterministic systems.
Concurrency and uncertainty are given. Consistent state and repeatable decisions by design.


weavegate

Automated transaction verification for Spring Boot CI

  • Replay · the exact interleaving behind a race, against real MySQL.
  • Judge · domain invariants in SQL, with evidence you can rerun.
  • Prove · the fix closes it — 20/20 before, 0/20 after.
  • Gate · every pull request, before it merges.

Deterministic replay Go MySQL 8 / InnoDB Testcontainers GitHub Actions

WeaveTrail

Evidence-graded market analysis from official releases and public data

  • Collect · FSC, FSS, and SEC releases, snapshotted by hash and joined into one event.
  • Verify · quotes matched to the source bytes, every number recomputed by code.
  • Grade · each sentence marked quoted, computed, differs, or AI interpretation.
  • Share · a one-page brief whose link reopens the same evidence.

AI trust boundaries TypeScript Next.js


Team projects · built with teams across embedded, backend, and AI
Project What it does
Ongi Device Connected medication-dispenser firmware, from caregiver schedule to confirmed intake. The device runs the server's schedule on synced time, opens the right slot, and reports whether the pill was actually taken (C / ESP-IDF)
Team-po / Server Team matching and collaboration for developer side projects. Matching runs in a locked transaction so no one lands on two teams, and each team gets a group chat, GitHub integration, and an AI-generated development guide (Java / Spring Boot)
CarryCheck Hybrid RAG agent with deterministic decisions and guardrailed generation. BM25 and Qwen3 embeddings fused by RRF reach Recall@3 1.00, a harness that rejects status or source drift passes 10/10, and selective context cuts tokens by 38.6% (Python / FuriosaAI)
Foundations · where the concurrency, memory, and systems intuitions came from
Project What it involved
xv6-kernel-extensions Stride scheduling, an inverted page table, and copy-on-write file-system snapshots inside the xv6 kernel (C)
linux-system-programming Process control, daemons, signal handling, file locking, ext2 image traversal (C)
compiler C-subset pipeline — RD/LR parsing, semantic analysis, symbol tables, code generation (C)

Pinned Loading

  1. weavegate/weavegate weavegate/weavegate Public

    Deterministic replay CI gate for schedule-dependent database bugs in Spring Boot + MySQL/InnoDB workflows.

    Go

  2. WeaveTrail/WeaveTrail WeaveTrail/WeaveTrail Public

    Evidence-graded market event analysis. Clear conclusions from official releases and public market data, every number recomputed and every sentence sourced.

    TypeScript

  3. Ongi-Team/ongi-device Ongi-Team/ongi-device Public

    Ongi Device: an IoT medication dispenser

    C

  4. Team-po/Server Team-po/Server Public

    Java 1