docs: mark Phase 1 of automated deployment pipeline as completed

Phase 1 is now fully implemented with parameterized multi-VM deployments
via OpenTofu. Updated status, tasks, and added implementation details.

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

TODO.md

@@ -23,17 +23,30 @@ Automate the entire process of creating, configuring, and deploying new NixOS ho
 
 ## The Plan
 
-### Phase 1: Parameterized OpenTofu Deployments ✓ (Partially Complete)
+### Phase 1: Parameterized OpenTofu Deployments ✅ COMPLETED
 
-**Status:** Template building works, single VM deployment works, need to parameterize
+**Status:** Fully implemented and tested
+
+**Implementation:**
+- Locals-based structure using `for_each` pattern for multiple VM deployments
+- All VM parameters configurable with smart defaults (CPU, memory, disk, IP, storage, etc.)
+- Automatic DHCP vs static IP detection based on `ip` field presence
+- Dynamic outputs showing deployed VM IPs and specifications
+- Successfully tested deploying multiple VMs simultaneously
 
 **Tasks:**
-- [ ] Create module/template structure in terraform for repeatable VM deployments
-- [ ] Parameterize VM configuration (hostname, CPU, memory, disk, IP)
-- [ ] Support both DHCP and static IP configuration via cloud-init
-- [ ] Test deploying multiple VMs from same template
+- [x] Create module/template structure in terraform for repeatable VM deployments
+- [x] Parameterize VM configuration (hostname, CPU, memory, disk, IP)
+- [x] Support both DHCP and static IP configuration via cloud-init
+- [x] Test deploying multiple VMs from same template
 
-**Deliverable:** Can deploy a VM with custom parameters via OpenTofu
+**Deliverable:** ✅ Can deploy multiple VMs with custom parameters via OpenTofu in a single `tofu apply`
+
+**Files:**
+- `terraform/vms.tf` - VM definitions using locals map
+- `terraform/outputs.tf` - Dynamic outputs for all VMs
+- `terraform/variables.tf` - Configurable defaults
+- `terraform/README.md` - Complete documentation
 
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