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Page: 10 System Atlas
Pages
00 Documentation Map and Scope 00 Documentation Standards 00 Start Here and Governance 10 System Atlas 11 Fleet Overview 12 Host Inventory 13 Service Catalogue 14 Network and Access Topology 15 Storage and Data Map 16 Automation and Control Plane 20 Architecture Decisions 21 ADR 001 Electra Hardware Specialisations 22 ADR 002 Workload Placement 23 ADR 003 Network Exposure 23 Project Tracking 24 ADR 004 Engram Durable Agent Memory 24 Security Baseline 25 ADR 005 Auto Update Control Plane 26 ADR 006 Scoped Secret Files 30 Operations and Runbooks 31 Routine Fleet Operations 32 Safe Testing and Deployment 33 Host Provisioning 34 Monitoring and Service Investigation 35 Backup Verification and Partial Restore 36 Full Host Recovery 37 Electra Boot Trust Recovery 38 Secret Editing and Recipient Rotation 39 Auto Update Incident Response 39a Service Migration and Cutover 39b Wrapper Repository Packaging 40 Engineering Handbook 41 Repository Structure and Import Chain 42 Configuration Ownership Boundaries 43 Adding Packages and Flake Inputs 44 Adding a Module or Profile 45 Adding a Host 46 Adding or Migrating a Service 47 Testing and CI Contracts 48 Secrets Implementation Conventions 49 Documentation Maintenance 50 NixOS Learning Path 51 Guided Repository Tour 52 Nix Language Essentials 53 Declarative Configuration Store and Generations 54 Flakes and Inputs 55 NixOS Modules and Option Merging 56 SpecialArgs and Home Manager Argument Flow 57 Electra Specialisations Worked Example 58 Nix Troubleshooting Primer 90 Historical Material 91 Electra Secure Boot Hardening Record Home
9 10 System Atlas
Nimmo edited this page 2026-09-13 13:14:49 +01:00
Table of contents

System Atlas

  • Type: Index
  • Status: Current
  • Scope: Fleet
  • Canonical sources: flake.nix, hosts/, modules/, nixosConfig.host, and service-specific modules
  • Last verified: Source commit 556df88494686003b1c4f20c8e0b99b5afc16a6e (2026-09-12)
  • Review triggers: Changes to configured hosts, host metadata, service placement, networking, storage, databases, backups, or fleet automation

The System Atlas is the factual centre of the wiki: what exists, where it runs, how it is reached, what data it owns, and what it depends on. It will describe relationships and boundaries rather than reproduce configuration.

Atlas pages

These pages were built under issue #220.

Retired host and secrets chapters remain in wiki Git history. Live configuration still comes from flake.nix, host imports, nixosConfig.host metadata, and service modules. Secret implementation and rotation have separate current pages in the Engineering Handbook and Operations.

The source layout and import chain are documented in the Engineering Handbook, not in this fleet atlas.