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tweak project proposal #1

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kiara wants to merge 95 commits from rewrite into main
pull from: rewrite
merge into: kiara:main
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architecture.md
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- Developers - Developers
The group working on this repository. The group maintaining this repository.
We are creating the deployment workflows and service configurations. We are creating the deployment workflows and service configurations, and curate changes proposed by contributors.
- Contributors
People proposing changes to this repository.
- Hosting provider - Hosting provider
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- Application - Application
User-facing software (e.g. from Fediverse) run by the hosting provider for an operator. User-facing software (e.g. from Fediverse) configured by operators and used by users.
- Configuration - Configuration
A collection of settings for a machine running NixOS. A collection of settings for a piece of software.
> Example: Configurations are deployed to VMs. > Example: Configurations are deployed to VMs.
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- Deploy - Deploy
Put software, such as applications, onto computers. Put software onto computers.
The software includes technical configuration that links software components. The software includes technical configuration that links software components.
In our context, this a Configuration deployed to a runtime environment.
Most user-facing configuration remains untouched by the deployment process.
- Migrate - Migrate
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### [SelfHostBlocks](https://nlnet.nl/project/SelfHostBlocks/) ### [SelfHostBlocks](https://nlnet.nl/project/SelfHostBlocks/)
SelfHostBlocks offers Nix module contracts to decouple applications from service providers, empowering user choice by providing sane defaults yet a [unified interface](https://nlnet.nl/project/SelfHostBlocks/). SelfHostBlocks offers Nix module contracts to decouple application configuration from implementation details, empowering user choice by providing sane defaults yet a [unified interface](https://nlnet.nl/project/SelfHostBlocks/).
Considered alternatives include: Considered alternatives include:
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## Architecture ## Architecture
At the core of Fediversity lies a NixOS configuration template containing selected applications. At the core of Fediversity lies a NixOS configuration module for a set of selected applications.
We support using this with different run-time environments, with targets deemed in scope including NixOS itself and hypervisor ProxmoX. We will support using it with different run-time environments, such as a single NixOS machine or a ProxmoX hypervisor.
Depending on the targeted run-time environment, deployment will further involve orchestrator OpenTofu. Depending on the targeted run-time environment, deployment will further involve OpenTofu as an orchestrator.
We further provide a [reference front-end](https://git.fediversity.eu/Fediversity/Fediversity/src/branch/main/panel) to configure our template. We further provide a [reference front-end](https://git.fediversity.eu/Fediversity/Fediversity/src/branch/main/panel) to configure applications.
To ensure reproducibility, we also offer Nix packaging for our software. To ensure reproducibility, we also offer Nix packaging for our software.
To reach our goals, we aim to implement the following interactions between [actors](#actors) (depicted with rounded corners) and system components (see the [glossary](#glossary), depicted with rectangles). To reach our goals, we aim to implement the following interactions between [actors](#actors) (depicted with rounded corners) and system components (see the [glossary](#glossary), depicted with rectangles).
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### Host architecture ### Host architecture
Whereas the core abstraction in Fediversity is a NixOS configuration template, a more full-fledged example architecture of the web host use-case we aim to support as part of our exploitation would be as follows, where VMs in question run Fediversity to offer our selected applications: Whereas the core abstraction in Fediversity is a NixOS configuration module, a more full-fledged example architecture of the web host use-case we aim to support as part of our exploitation would be as follows, where VMs in question run Fediversity to offer our selected applications:
![](https://git.fediversity.eu/Fediversity/meta/raw/branch/entity-relations/architecture-docs/host-architecture.png) ![](https://git.fediversity.eu/Fediversity/meta/raw/branch/entity-relations/architecture-docs/host-architecture.png)
@ -261,7 +263,7 @@ Whereas details of the implementation may need to be decided as the technical ch
- [garbage collection of unallocated resources](https://git.fediversity.eu/Fediversity/Fediversity/issues/188) - [garbage collection of unallocated resources](https://git.fediversity.eu/Fediversity/Fediversity/issues/188)
- [Nix-less bootstrap](https://git.fediversity.eu/Fediversity/Fediversity/issues/332) - [Nix-less bootstrap](https://git.fediversity.eu/Fediversity/Fediversity/issues/332)
- [ensure hosts may update users' deployments](https://git.fediversity.eu/Fediversity/Fediversity/issues/159) - [ensure hosts may update users' deployments](https://git.fediversity.eu/Fediversity/Fediversity/issues/159)
- [reference front-end decoupled from template version](https://git.fediversity.eu/Fediversity/Fediversity/issues/304) - [reference front-end decoupled from version of configuration module](https://git.fediversity.eu/Fediversity/Fediversity/issues/304)
- [security audit](https://git.fediversity.eu/Fediversity/Fediversity/issues/291) - [security audit](https://git.fediversity.eu/Fediversity/Fediversity/issues/291)
- [Key features improving user experience supported](https://git.fediversity.eu/Fediversity/Fediversity/issues/289): - [Key features improving user experience supported](https://git.fediversity.eu/Fediversity/Fediversity/issues/289):
- [enqueuing deployment syncs](https://git.fediversity.eu/Fediversity/Fediversity/issues/242) - [enqueuing deployment syncs](https://git.fediversity.eu/Fediversity/Fediversity/issues/242)