docs: remove K3s deployment section from README

Remove outdated K3s-specific deployment instructions and replace with
accurate Flux GitOps deployment information. The app is deployed to a
full Kubernetes cluster (not K3s) using Flux for GitOps automation.

2026-02-25 16:28:29 -06:00

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Aprs

Prerequisites

Before setting up the project, ensure you have the following installed:

Elixir 1.17+
Erlang/OTP
PostgreSQL with PostGIS extension

Setup

To start your Phoenix server:

Run the complete setup:
```
mix setup
```
Start Phoenix endpoint with mix phx.server or inside IEx with iex -S mix phx.server

Now you can visit localhost:4000 from your browser.

Ready to run in production? Please check our deployment guides.

Deployment

This application is deployed to a Kubernetes cluster using Flux GitOps. The Kubernetes manifests are in the k8s/ directory and are automatically applied by Flux when changes are pushed to the main branch.

Learn more

Official website: https://www.phoenixframework.org/
Guides: https://hexdocs.pm/phoenix/overview.html
Docs: https://hexdocs.pm/phoenix
Forum: https://elixirforum.com/c/phoenix-forum
Source: https://github.com/phoenixframework/phoenix