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jackos1998 a2f3410e42 docs/boxes: Document deployed boxes

Add per-site and per-box inventories, consolidate shared network design,
and relocate the switch and access-point references under the home site.

2026-08-02 00:12:57 +01:00

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chatterbox

The Matrix homeserver for nul.ie (Synapse) and its bridges to other chat networks. middleman fronts it as matrix.nul.ie for clients and on :8448 for federation.

Source: shill/containers/chatterbox.nix
Host: NixOS container on shill
nixpkgs: mine

Role

Synapse

matrix-synapse serves nul.ie at https://matrix.nul.ie, with Element at element.nul.ie. Port 8008 carries client and federation traffic with forwarded headers, while a localhost manhole uses port 9000. Registration and guest access are disabled; uploads, dynamic thumbnails and URL previews are enabled, with preview fetching restricted to middleman.

Bridges

The box runs heisenbridge for IRC, mautrix-whatsapp, and two mautrix-meta instances for Messenger and Instagram. The mautrix bridges use colony-psql, default to end-to-end encryption, and share the secret doublepuppet.yaml registration for double puppeting onto nul.ie. The firewall admits ports 8008 and 8009 in addition to netdata.

Network assignments

See the consolidated network assignments table (this box: chatterbox).

Notes

Synapse's real database config lives in the chatterbox/synapse.yaml age secret — options only merge at the top level, so the base config carries a dummy sqlite3 block to satisfy the module defaults. The signing key is also an age secret.
olm-3.2.16 is allowed via permittedInsecurePackages (a nixpkgs E2EE library issue).
The bridge services get ffmpeg on their PATH for GIF→video conversion.

Notable config files

nixos/boxes/colony/vms/shill/containers/chatterbox.nix — container definition, Synapse settings and all bridge configuration

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