nixpkgs: Refresh channels and inputs

Rebase the fork branches and refresh nixpkgs, home-manager, and the
approved ancillary inputs. Update kernel and release metadata, adapt
removed package and Home Assistant options, and keep Determinate Nix
on its tested nixpkgs revision to avoid duplicate Boost patches.

Retire Sharry and its public endpoint because copyparty replaces it.
Document the GitHub mirror gate and require real devshell and system
builds in the upgrade validation workflow.

docs/README.md

@@ -47,7 +47,7 @@ colony (physical VM host, ams1)
 │                                     ├── colony-psql  (shared PostgreSQL)
 │                                     ├── chatterbox   (Matrix Synapse + bridges)
 │                                     ├── jackflix     (media stack)
-│                                     ├── object       (MinIO, Harmonia Nix cache, Sharry, HedgeDoc, wastebin)
+│                                     ├── object       (MinIO, Harmonia Nix cache, HedgeDoc, wastebin)
 │                                     ├── toot         (Bluesky PDS; Mastodon disabled)
 │                                     ├── waffletail   (Tailscale subnet router / exit node)
 │                                     ├── qclk         (WireGuard management appliance)

docs/architecture.md

@@ -175,7 +175,7 @@ descriptions) see [`reference/nixos-options.md`](reference/nixos-options.md).
 
 | Module | Provides |
 |---|---|
-| `common` | Baseline for all boxes: imports the impermanence, ragenix (age), sharry, copyparty and harmonia NixOS modules; pins `system.stateVersion`; `doas` instead of `sudo`; immutable users; nix settings (flakes, `ca-derivations`, the `nix-cache.nul.ie` substituter); declares the `my` option root. |
+| `common` | Baseline for all boxes: imports the impermanence, ragenix (age), copyparty and harmonia NixOS modules; pins `system.stateVersion`; `doas` instead of `sudo`; immutable users; nix settings (flakes, `ca-derivations`, the `nix-cache.nul.ie` substituter); declares the `my` option root. |
 | `user` | `my.user` — the primary user: `users.users` + matching `home-manager.users` entry, wheel/doas, SSH authorized key from `.keys/me.pub`, shell taken from the home config, home persistence under tmproot. |
 | `build` | `my.build` — alternate build targets via `extendModules`: `my.buildAs.devVM` (QEMU dev VM), `iso`, `container`, `kexecTree`, `netbootTree`/`netbootArchive`; `my.build.isDevVM` marker; `allHardware` profile toggle. |
 | `dynamic-motd` | `my.dynamic-motd` — runs a script via `pam_exec` to generate the MOTD on login/ssh. |

docs/nixpkgs-upgrade.md

@@ -72,6 +72,12 @@ For **both** branches — `devplayer0` onto `upstream/nixos-unstable`, and `devp
    conflicted.
 6. ⏸ **Push:** only after confirmation. `git push --force-with-lease origin devplayer0
    devplayer0-stable` (force needed — rebase rewrites history).
+7. Wait for the GitHub mirror used by the flake inputs to catch up with the primary fork remote.
+   Compare the local branch tips with
+   `git ls-remote https://github.com/devplayer0/nixpkgs.git refs/heads/devplayer0
+   refs/heads/devplayer0-stable` and do not continue until both match. Updating sooner can leave
+   `nixpkgs-mine` and `nixpkgs-mine-stable` pinned to the pre-rebase commits even though the push
+   succeeded.
 
 ## Phase 3 — Update the pinned inputs
 
@@ -126,7 +132,7 @@ Don't blanket-update. Walk the other inputs deliberately:
 
 1. List inputs and locked revisions from `flake.lock` (or `nix flake metadata`).
 2. For each meaningful input (`libnetRepo`, `devshell`, `determinate-nix`, `ragenix`, `deploy-rs`,
-   `impermanence`, and the packaged apps like `boardie`, `harmonia`, `copyparty`, `sharry`, …),
+   `impermanence`, and the packaged apps like `boardie`, `harmonia`, and `copyparty`),
    compare the locked revision to upstream and summarize notable changes (breaking changes,
    relevant fixes). Many inputs `follows` `nixpkgs-unstable` and already moved in Phase 3.
 3. Propose a per-input update list with reasons; update the approved ones with targeted
@@ -137,7 +143,14 @@ Don't blanket-update. Walk the other inputs deliberately:
 1. `nix flake check --no-build` (broad eval; reproduces CI's cheap checks).
 2. `check-system <host>` on a representative box, and one exercising the stable channel if the
    boxes mix channels. This must exercise the refreshed kernel constants on both channels.
-3. Report eval/build results honestly. On failure, surface the error and stop rather than papering
+3. Build the actual devshell with
+   `nix build --no-link --print-out-paths .#devShells.x86_64-linux.default`. Evaluation does not
+   build its dependencies, so it cannot catch packaging conflicts introduced by inputs such as
+   Determinate Nix.
+4. After the evaluations pass, run `build-system <host>` for one representative NixOS box. Prefer
+   the local box when it is managed by this flake: its full closure is likely to exercise the most
+   relevant packages, home-manager configuration and upgraded kernel. Build only; do not switch.
+5. Report eval/build results honestly. On failure, surface the error and stop rather than papering
    over it.
 
 ## Wrap-up

docs/sites/colony/shill/README.md

@@ -53,7 +53,7 @@ their current addresses. Each container has its own page:
 | [`colony-psql`](containers/colony-psql.md) | Shared PostgreSQL (14) |
 | [`chatterbox`](containers/chatterbox.md) | Matrix Synapse + bridges |
 | [`jackflix`](containers/jackflix.md) | Media stack |
-| [`object`](containers/object.md) | MinIO, Harmonia Nix cache, Sharry, HedgeDoc, wastebin |
+| [`object`](containers/object.md) | MinIO, Harmonia Nix cache, HedgeDoc, wastebin |
 | [`toot`](containers/toot.md) | Bluesky PDS (Mastodon disabled) |
 | [`waffletail`](containers/waffletail.md) | Tailscale subnet router / exit node |
 | [`qclk`](containers/qclk.md) | WireGuard management appliance |

docs/sites/colony/shill/containers/colony-psql.md

@@ -15,7 +15,7 @@ database, the containers (and the `git` VM) connect here over the `ctrs` network
   the ident map.
 - **netdata** with the Python PostgreSQL collector.
 - Consumers wait for the database to accept connections with the `lib.my.systemdAwaitPostgres`
-  helper (e.g. `sharry`, `atticd`, `mastodon-init-db`, and `middleman`'s nginx as a DNS
+  helper (e.g. `atticd`, `mastodon-init-db`, and `middleman`'s nginx as a DNS
   bootstrap hack).
 
 ## Network assignments
@@ -27,7 +27,7 @@ use as the database hostname.
 
 ## Consumers
 
-- [object](object.md) — `sharry` and `hedgedoc` (and `atticd` when enabled) over
+- [object](object.md) — `hedgedoc` (and `atticd` when enabled) over
   `colony-psql:5432`
 - [toot](toot.md) — Mastodon's database (Mastodon currently disabled)
 - [chatterbox](chatterbox.md) — the mautrix bridges (WhatsApp, Messenger, Instagram) via

docs/sites/colony/shill/containers/middleman.md

@@ -71,7 +71,6 @@ all vhosts are `onlySSL`, kTLS and HTTP/2. "SSO" = gated behind nginx-sso (`gene
 | `jackflix.nul.ie` | `jackflix-ctr:8096` | Jellyfin; `/socket` websockets; `/` redirects to `/web/` |
 | `toot.nul.ie` | `toot-ctr:80` | Mastodon — **upstream currently disabled**, see [toot](toot.md) |
 | `pds.nul.ie` | `toot-ctr:3000` | Bluesky PDS ([toot](toot.md)); websockets |
-| `share.nul.ie` | `object-ctr:9090` | Sharry ([object](object.md)); websockets |
 | `stuff.nul.ie` | `jackflix-ctr:3923` | copyparty |
 | `public.nul.ie` (+ alias `p.nul.ie`) | static `/mnt/media/public` | fancyindex file listing; `addSSL` so plain HTTP also works |
 | `mc-map.nul.ie` | `simpcraft-oci:8100` | Minecraft map (OCI container on [`whale2`](../../whale2.md#game-servers)) |

docs/sites/colony/shill/containers/object.md

@@ -1,7 +1,6 @@
 # object
 
-Object storage and the Nix binary cache, plus a few small self-hosted web apps (Sharry,
-HedgeDoc, wastebin).
+Object storage and the Nix binary cache, plus HedgeDoc and wastebin.
 
 - **Source:** [`shill/containers/object.nix`](../../../../../nixos/boxes/colony/vms/shill/containers/object.nix)
 - **Host:** NixOS container on [`shill`](../README.md) (bind-mounts `/mnt/minio` and
@@ -14,7 +13,6 @@ HedgeDoc, wastebin).
 | --- | --- | --- |
 | MinIO | `9000` (S3) / `9001` (console) | S3-compatible object storage, `s3.nul.ie` + `*.s3.nul.ie` (virtual-host style via `MINIO_DOMAIN`), console at `minio.nul.ie`; region `eu-central-1`; data on the `/mnt/minio` XFS volume |
 | Harmonia | `5000` | Nix binary cache at `nix-cache.nul.ie` — `harmonia-dev` cache serves `shill`'s `/nix/store` out of a dedicated store view rooted at `/var/lib/harmonia` (bind-mounted from `/mnt/nix-cache`), signed with the `nix-cache.key` secret; a `harmonia` user with authorized keys exists for cache pushes |
-| Sharry | `9090` | file sharing at `share.nul.ie`; Postgres on [colony-psql](colony-psql.md), files stored in the `share` MinIO bucket; fixed `dev` account + invite signup; mail via `mail.nul.ie`; configured share-size limit |
 | HedgeDoc | `3000` | collaborative markdown notes at `md.nul.ie`; Postgres on [colony-psql](colony-psql.md); anonymous edits but no anonymous notes, email login, no open email registration |
 | wastebin | `8088` | pastebin at `pb.nul.ie` |
 | atticd | `8069` | **currently disabled** (`services.atticd.enable = false`) — an alternative Nix cache that would store locally and sit behind `nix-cache.nul.ie`; config (including the `object/atticd.env` secret) is kept around |
@@ -29,10 +27,10 @@ See the consolidated [network assignments](../../../../networking.md#box-assignm
 
 ## Backing services
 
-- [colony-psql](colony-psql.md) — Sharry and HedgeDoc databases (atticd too, when enabled).
+- [colony-psql](colony-psql.md) — HedgeDoc's database (atticd too, when enabled).
 - MinIO buckets back other boxes' services: Gitea LFS/packages (with the `middleman` MIME hack
   for Docker manifests), Mastodon's `mastodon` bucket and the Bluesky PDS `pds` bucket on
-  [toot](toot.md), and Sharry's `share` bucket.
+  [toot](toot.md).
 
 ## Notable config files