rm nexus, add placeholder READMEs

docker/authentik/.env.example

@@ -0,0 +1 @@
+## Get from https://docs.goauthentik.io/docs/installation/docker-compose#preparation

docker/downloaders/.env.example

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+LAN_NETWORK=10.10.10.0/24

docker/nexus/docker-compose.yml

@@ -1,11 +0,0 @@
----
-services:
-  nexus:
-    image: sonatype/nexus3:3.71.0
-    container_name: nexus
-    restart: unless-stopped
-    ports:
-      - 8081:8081
-      - 8082:8082
-    volumes:
-      - /docker/appdata/nexus:/nexus-data ## To get to work run: sudo chown -R 200 /docker/appdata/nexus/ | cat /docker/appdata/nexus/admin.password

terraform/nexus.tf

@@ -1,65 +0,0 @@
-resource "proxmox_virtual_environment_vm" "Nexus" {
-
-    # VM General Settings
-    node_name    = "prox"
-    vm_id        = 205
-    name         = "Nexus"
-    description  = "Docker Registry to limit DockerHub pulls"
-    tags         = ["tofu", "ubuntu24", "auto-homelab-repo", "infrastructure"]
-
-    agent {
-      enabled = true # read 'Qemu guest agent' section, change to true only when ready
-    }
-
-    clone {
-        vm_id = 8002
-    }
-    
-    # VM CPU Settings
-    cpu {
-        cores = 4
-        type  = "host"
-        architecture = "x86_64"
-    }
-    
-    # VM Memory Settings
-    memory {
-        dedicated = 4096
-    }
-
-    # VM Network Settings
-    network_device {
-        bridge  = "vmbr0"
-    }
-
-    # VM Disk Settings
-    disk {
-        datastore_id = "Fast2Tb"
-        size         = 120
-        interface    = "scsi0"
-    }
-
-    vga {
-        type = "serial0"
-    }
-
-    initialization {
-        ip_config {
-            ipv4 {
-                address = "dhcp"
-            }
-        }
-
-        user_account {}
-    }
-
-    lifecycle {
-        ignore_changes = [
-            initialization[0].user_account[0].keys,
-            initialization[0].user_account[0].password,
-            initialization[0].user_account[0].username,
-            initialization[0].user_data_file_id
-        ]
-    }
-
-}