update where shell starts and add override -home setting

README.md

@@ -33,6 +33,7 @@ Change with `-setlogin` before first use.
 | `-log off` | — | Disable file logging (console output always on) |
 | `-mfa <user> on` | — | Enable TOTP MFA for user — prints secret + QR code |
 | `-mfa <user> off` | — | Disable TOTP MFA for user |
+| `-home <path>` | `~` | Starting directory for new shell sessions |
 
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@@ -101,26 +102,8 @@ Structured JSON-lines, one entry per login attempt:
 
 ## Run as service
 - `gotermix.service` is pretty limitted, you can change settings there to suit your needs
-```bash
-# 1. Create unprivileged system user (no shell, no home)
-useradd --system --no-create-home --shell /sbin/nologin gotermix
-
-# 2. Deploy binary and set ownership
-mkdir -p /opt/gotermix
-cp gotermix /opt/gotermix/
-chown -R gotermix:gotermix /opt/gotermix
-chmod 750 /opt/gotermix
-chmod 750 /opt/gotermix/gotermix
-
-# 3. Install and enable service
-cp gotermix.service /etc/systemd/system/
-systemctl daemon-reload
-systemctl enable --now gotermix
-
-# 4. Check it's up
-systemctl status gotermix
-journalctl -u gotermix -f
-```
+- there are 2 samples, `gotermix-limitted.service` has many settings what limits what this app and sessions in can do ( you may not even change user)
+- `gotermix.service` is pretty much normal full shell without restriction, run as specific user.
 
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