diff --git a/README.md b/README.md
index b75546a5..74d4f1d2 100644
--- a/README.md
+++ b/README.md
@@ -52,8 +52,8 @@ Project status: **Alpha** (see [roadmap](#roadmap) below)
 - [x] CI/CD platform
 - [x] Private container registry
 - [x] Distributed storage
+- [x] Support multiple environments (dev, stag, prod)
 - [ ] Monitoring and alerting 🚧
-- [ ] Support multiple environments (dev, stag, prod) 🚧
 - [ ] Automated offsite backups 🚧
 - [ ] Single sign-on 🚧
 
diff --git a/docs/src/deployment/configuration.md b/docs/src/deployment/configuration.md
index e4d23791..989359b6 100644
--- a/docs/src/deployment/configuration.md
+++ b/docs/src/deployment/configuration.md
@@ -5,6 +5,22 @@
 Because this repository ([khuedoan/homelab](https://github.com/khuedoan/homelab)) applies GitOps practices,
 it's the source of truth for my homelab, so you'll need to folk it to make it yours.
 
+## Choose the environment
+
+| Environment | Branch   |
+| ----------- | ------   |
+| Production  | `master` |
+| Staging     | `stag`   |
+| Development | `dev`    |
+
+For example, if you're trying out the dev VM, use the development environment:
+
+```sh
+git checkout dev
+```
+
+<!-- TODO show complete workflow -->
+
 ## Run the configure script
 
 Run the following script to configure the homelab:
diff --git a/metal/Vagrantfile b/metal/Vagrantfile
index 069decc4..fb5cfc58 100644
--- a/metal/Vagrantfile
+++ b/metal/Vagrantfile
@@ -4,11 +4,9 @@ inventory = YAML.load_file(File.join(__dir__, './inventories/dev.yml'))
 group_vars = YAML.load_file(File.join(__dir__, './group_vars/all.yml'))
 
 # ANCHOR: vm_specs
-# TODO This is ridiculous for a local development environment.
-# After multi-env is supported, optimize it.
-cpus = 4
-memory = "10240"
-disk_size = "256GB"
+cpus = 2
+memory = "8192"
+disk_size = "128GB"
 # ANCHOR_END: vm_specs
 
 Vagrant.configure("2") do |config|