Week 12 / 2026 — The Second User

16 March – 22 March 2026 · 498 commits · 0.7.x → 0.30.x

Four hundred and ninety-eight commits.

You don’t get to 498 commits in a calendar week by being careful. You get there by being on the right side of momentum, with three threads converging at the same time: cloud deploys becoming routine, AFS becoming a remote-syncable git repo, and the docs site going from “not a thing” to “5 guides + 1 tutorial + 54 glossary terms” between Saturday morning and Sunday night. By the time the Sunday milestone landed — “The Second User” — the product had crossed a threshold that no commit message can quite name. Someone other than the author was using it.

Cloud goes from prototype to deployable

Monday and Tuesday: Docker, R2, Fly. The architecture sketches from W11 stopped being sketches.

• 44538efa — “Add KLS Store: multi-tenant Explorer via DuckDB ATTACH from local dir or R2”. The ATTACH-based shared catalog mode that bypasses single-file mode. This is exactly the architecture that, eight weeks later, would surface the dev-reload regression fixed yesterday.
• 3d5fb1f8 — “Explicit KLS_SOURCE switch: no ambiguity between local and R2 modes”. The env flag that yesterday’s fix had to gate against.
• dd1f5e30 — jinflow cloud sync/ls for KLS-to-R2 upload with blacklist
• fa41560a — “KLS-agnostic Dockerfile: no baked-in data, supports R2 and local mount”
• be37c13e — “Switch R2 mode to download+cache: fast local queries with persistent volume”. The hybrid model: R2 is authoritative, the local cache is fast.

The deployment got branded: 7df0b0a0 renamed the Fly app jinflow-demo → this-is-jinflow. a89f4201 made the product title “The jinflow Experience”. The cloud was suddenly a place with an address.

Cloudflare Tunnel + the Go proxy

Sunday evening’s 2ad49f92 shipped “Proxy: Cloudflare Tunnel + Explorer registration”. Earlier the same day, 2e0ccf13 had added jinflow proxy — a local DuckDB query server in Go. Together: the KLS stays on the laptop, the Explorer connects through a Cloudflare Tunnel, queries route over HTTP. The Sovereignty Principle — Your data. Your machine. Their browser. — has its first technical realization.

The companion concept doc was already in: c39c57ab — “Local KLS with Cloud Explorer (proxy, WASM, hybrid)”. P2P2P doesn’t have that name yet, but the architecture is here.

The notebook becomes singular

Two parallel renames flipped a fundamental: notebooks → notebook (singular). One notebook per AFS. Multiple cells inside it.

• a6141e91 — “Add notebook system Phase 1: schema, validator, and sample notebooks” — Monday
• 7a5f8ccf — Phase 2: compiler, Explorer pages, i18n, sidebar nav — Monday
• 518fff1f — “Refactor notebooks to singular notebook (one per tenant)” — Wednesday
• c39c20c8 — “Rename notebooks/ to notebook/ (singular) — one notebook per AFS” — Friday

Plus 3ac8b7ed shipped “SIS-based notebook store (Phase 1: schema + Python API + Explorer wiring)” — notebooks are mutable, they belong in SIS, not KLS. 4f3a572f added the SIS merge protocol. 41602fb9 enabled in-Explorer notebook editing (create, edit, delete cells). d7edd552 added PDF export via browser print + CLI.

The notebook system that ends up at the heart of the recents flow (and later the panel-cells of Sense 13) was built in five days.

AFS becomes a remote-syncable git repo

The AFS had been a local git repo since W10. Now it learned to talk to GitHub.

• f7834bb7 — “AFS drift detection via GitHub API”
• 474c5257 — design doc: AFS Remote Sync
• 6dcb7f20 — design doc: AFS Git Integration
• 466a214b — “Git provenance: baked history + .git in KLS + identity API”
• c17c5b73 — “Include .git in AFS archive baked into KLS”. The KLS now travels with the AFS’s full history.
• 5290effb — jinflow init --clone and jinflow afs remote
• 4fe2a712 — “jin afs diff and group drift files by artifact type”
• 6d1fcf33 — “Auto-stash uncommitted changes during jin afs pull”

By Saturday, an AFS lived in three places at once — the operator’s laptop, GitHub, the KLS — and they could be reconciled. The “three-party drift” view from W11 became a real thing operators could read.

Identity, in three phases

Sunday landed three commits in sequence:

• 7a10fa54 — design doc: “Identity, Roles, Passes, and Capabilities”
• 1259fcac — Phase 0+1: identity system with capability-based sidebar filtering
• c908aa5c — Phase 2: server-side capability enforcement

Plus the Cloud Authentication design doc (f51f32c4) was committed the same day. Capabilities were no longer just an idea from W09’s authz concept paper. They were filtering sidebar items.

Domain packs as separate repos

Tuesday: ebfde5ab — “Phase 1: Decouple packs from engine repo and deploy bundle”. Tuesday afternoon: 868761e0 — “Phase 2: Remove packs/ from engine repo — packs are now separate repos”. The convention jinflow-pack-{name} is established with b4b013ae, and 57cd9330 ships jinflow pack clone.

The engine and the pack are now independent code units. They cross a seam — the same seam Sense 20 will name explicitly six weeks later.

docs.jinflow.io

Saturday evening: 20cf7916 — “first build of docs.jinflow.io documentation site”. By the end of Sunday the site had:

• A roadmap with 7 decisions documented (b9688513, 4777fe4b)
• Five user-facing guides (Explorer, notes, instruments, tenants, deploy)
• A glossary of 54 terms (972591e6)
• Tutorial #1 — “Your First Build (15 min walkthrough)” (936c4dd7)
• A documentation drift detector (c320b5d4)
• A documentation process documented in the repo (b08199f0)
• A history/motivation interview (d13ef89f)
• A Cloudflare Pages deploy config (300bf4bd)
• A reframing of domain packs as optional (2c3e392b) — the engine works without a pack

This site, three weeks ago, did not exist. Sunday it had three iterations of revisions on it (dec91c94, 00b080a1, f506389f).

Two new domain packs

• interlogic (20b2d14f) — global logistics operations analytics. Tuesday.
• alptrack (3b3f8f5c) — ski resort operations analytics. Tuesday.

The architecture from W11 was now being tested at three-pack scale, plus the engine reference (numetrix). Four packs, all building, all hosting tenants, in the same repo structure.

Lineage, levels 1–4

The provenance story matured all week, in four explicit levels:

• Level 1 (4b87eeeb) — probe detail page and probe link from findings
• Level 2 (83177525) — “Explain source records” button on finding detail
• Level 3 (992b257a) — show CSV provenance on entity detail pages
• Level 4 (16fd1852 — template-based; e06c6498 — AI-enhanced) — natural language finding explanations

Plus 5227fd07 — data provenance panel on dimension and finding pages. And 00f99176 — lazy provenance lookup from Silver.

You could now ask the Explorer: why is this finding here? And it would tell you, in three languages, with citations down to the CSV row.

The Instrument DAG

8ae3a95c shipped “Instrument DAG — interactive graph of the analytics pyramid.” Probes, hypotheses, diagnoses, smebits — all rendered as a clickable graph. 98af7581 added search, filters, and a stats bar. 9f0cb118 cached pipeline graph positions. By Sunday the DAG and the pipeline graph were two views of the same thing, and you could read them.

Conventions established

• Semantic commit prefix convention (32ada652) — feat:, fix:, docs:, chore:, test:, refactor:. Commit-msg hook enforces it. From this commit onward, every release notes auto-generation has a stable shape.
• !field:value search syntax with autocomplete (3e7adb91, bcce819c) — the mnemonic search that W13 would expand.
• Saved views in SIS (737efcc9, c8fc6085 design doc) — saved views moved from localStorage into SIS, where they belong.
• build/ from inside AFS to tenant instance level (80a20f6e) — build artifacts are not the AFS. A small move, a clean line.
• Idempotent make (28a96d48 design + c639db66 — “incremental jinflow make with 57 unit tests”) — running make on a clean tree does nothing, fast.
• The Mold → The Moat (a56c4bec) — vocabulary refinement.
• Treemap visualization (d1e19235) → proportional severity bars (fae5d141). The Explorer chose its primitives.

The Second User

Sunday afternoon: 137c5376 — “Add milestone doc: The Second User (2026-03-22).” The product has been used by someone other than the author. The doc is short. The implication is enormous.

Numbers

• 498 commits, 7 days. The biggest week in the repo’s history to this point, and probably ever.
• Release line: 0.8.0 (Mon) → 0.30.8 (Sun). The jump from 0.13.x to 0.27.x in the middle of the week reflects a backtracking on 1.0 versioning — fbc1189d “Roll back to 0.13.0”. A reminder that 498 commits include the ones that walk back.
• 4 packs (numetrix, millesime, alptrack, interlogic) now exist, all building
• 1 docs site live at docs.jinflow.io, tri-lingual scaffolding
• 5 user-facing guides + 1 tutorial + 54 glossary terms
• 4 lineage explanation levels
• 2 design papers on identity + 2 phases of implementation
• 1 Cloudflare Tunnel proxy
• 1 Go DuckDB query server
• 1 milestone: The Second User

What this week made possible

The cloud architecture that runs this-is.jinflow.io today was wired here. The AFS-as-git-repo model that Sense 21 (Heartbeat) eventually names was already real. The capability/identity system that Sense 24 (The Steward) will lean on was running on a real page. The KLS Store ATTACH mode that yesterday’s bug fix had to retrofit was three days old and behaving exactly as designed.

The product had a public URL and a docs site. People other than the author had run a tenant. That is the boundary between “interesting idea” and “real thing.” It was crossed in week 12.