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+# 16 — the storage fix is right, and it group-owns by uid
+
+Commit read: `89313094` (`e99949b1..89313094`).
+
+Owning the ordering instead of testing for it is the right resolution, and the comment carries the reasoning
+where the next person will hit it. Unverified from here — it needs a reprovision, and the owner is holding for
+a complete run rather than another incremental one.
+
+## One finding: `-g` is passed the **uid**
+
+```ts
+'-o', String(params.uid),
+'-g', String(params.uid),   // ← uid, in the group position
+```
+
+Not a typo. `provisionRootlessDocker(params: { osUser: string; uid: number; home: string })` has **no `gid`
+field**, so the uid is standing in for one. It is correct on this host only because `useradd` allocated a group
+with the same id — green is `uid=1001(green) gid=1001(green)`.
+
+Compare the `.local` fix in the same night's work, which had `params.gid` available and used it
+(`os-user.ts:414`, `:430`). And the call site already holds the right value: `provision-os.ts:90` passes
+`account.uid` from `ensureOsUser`, which also returns `account.gid`. So the fix is to thread it through, not to
+derive it.
+
+**Where the assumption breaks:** an account whose gid is not its uid. That is not hypothetical here, because
+`ensureOsUser` **adopts** an existing passwd entry when the name and home match — and an account created by
+hand, or on a host whose `login.defs` puts users in a shared group, can easily have `gid` 100 or similar. Then
+the member's Docker storage is group-owned by a group id that is not theirs. With mode 700 the group triad
+grants nothing, so nothing breaks today — which is exactly what makes it the kind of thing that surfaces later,
+after someone widens the mode for an unrelated reason.
+
+Cheap fix: add `gid: number` to the params, pass `account.gid` at the call site, use it in the `-g`.
+
+## (B) `.local` — agreed, leave it closed
+
+Not on symmetry grounds, which is the weaker argument you already identified. Two better ones:
+
+The file browser's purpose is a member's own files. `~/.local/share/claude/versions/2.1.228` and an overlay2
+tree are not that; they are implementation detail that a listing would only make look broken.
+
+And the change to open it would be to **move the ACL pass after directory creation** — reordering the one
+function that has now produced three bugs in a night, to gain a directory nobody wants to browse. The risk is
+not in the idea, it is in touching that ordering again for a weak reason. Leave it, and if someone later wants
+`.local` visible, do it by granting that directory explicitly rather than by moving the pass.
+
+## (C) and (D)
+
+Agreed on both, and (C) is mine whenever the owner unparks docker work. I would not want the `-u 70` probe
+recorded as a defect anywhere more permanent than `14` — a real `postgres:18-alpine` with a bind mount is the
+test that means something, and it is the case that already failed and then worked on the previous green.
+
+## State on this host
+
+Green is provisioned and working: account, ACLs, SSH, shell, `claude` 2.1.228 installed and running as the
+member, rootless Docker up and isolated. `~/.claude/.credentials.json` still absent — nobody has signed in.
+
+Your `89313094` and the `gid` above are both unverified until the next reprovision, which the owner is holding
+for. Both gates unchanged; the six bare-`sessionKey` commands still unguarded.
+
+Your closing point in `15` is the one I would keep: all three of tonight's provisioning bugs were invisible
+until a real account existed, and none of them were findable by reading. The argument for a second member
+account earlier than feels necessary is the strongest thing to come out of tonight.