Initial commit: NAS backup, NFS mount docs, NVMe fix docs

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

nfs-nas-mount.md

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+# NFS NAS Mount
+
+## NAS Details
+- **Hostname**: `nas.local.pmagnus.dk`
+- **IP**: `192.168.50.112`
+- **Protocol**: NFSv4.1
+
+## Available NFS Exports
+All exports are accessible from `192.168.50.0/24`:
+- `/vol01`, `/vm`, `/umbrel`, `/pve`, `/omarchy`, `/k8s`, `/docker`, `/Dev1Partition1`, `/data`, `/citadel`, `/btcdata`
+
+## Current Mount
+- **Source**: `nas.local.pmagnus.dk:/omarchy`
+- **Mount point**: `/mnt/nas`
+- **Options**: `rw,relatime,vers=4.1,rsize=1048576,wsize=1048576,hard,proto=tcp`
+- **Size**: 7.1T total, 127G used (2%)
+- **Contents**: `backup/`, `@Recycle/`
+
+## Useful Commands
+```bash
+# Show NAS exports
+showmount -e nas.local.pmagnus.dk
+
+# Mount
+sudo mount -t nfs nas.local.pmagnus.dk:/omarchy /mnt/nas
+
+# Persistent mount (add to /etc/fstab)
+nas.local.pmagnus.dk:/omarchy /mnt/nas nfs defaults,_netdev 0 0
+```
+
+## Notes
+- This machine: `192.168.50.42` on `enp88s0`
+- `nmap` is not installed; use `ip neigh show` for network discovery
+- `sudo` requires a terminal (not available from Claude Code)