add docs for 18.3 (#55)

src/content/docs/configuration/config.mdx

@@ -526,3 +526,49 @@ Atuin version: >= 18.1
 Default: true
 
 Configures whether the TUI exits, when scrolled past the last or first entry.
+
+## Daemon
+Atuin version: >= 18.3
+
+Default: false
+
+Enable the background daemon
+
+Add the new section to the bottom of your config file
+
+```
+[daemon]
+enabled = true
+```
+
+### sync_frequency
+
+How often the daemon should sync, in seconds
+
+```
+sync_frequency = 300
+```
+
+### socket_path
+
+Where to bind a unix socket for client -> daemon communication
+
+```
+socket_path = "~/.local/share/atuin/atuin.sock"
+```
+
+### systemd_socket
+
+Use a socket passed via systemd socket activation protocol instead of the path
+
+```
+systemd_socket = false
+```
+
+### tcp_port
+
+The port to use for client -> daemon communication. Only used on non-unix systems.
+
+```
+systemd_socket = false
+```

src/content/docs/guide/dotfiles.mdx

@@ -86,7 +86,53 @@ You can list all aliases with:
 atuin dotfiles alias list
 ```
 
-## Syncing and backing up aliases
+## Env vars
+
+After creating or deleting an env var, remember to restart your shell! 
+
+### Creating a var 
+
+```
+atuin dotfiles var set NAME 'value'
+```
+
+For example, to set `FOO` to be `bar`
+
+
+```
+atuin dotfiles var set FOO 'bar'
+```
+
+Vars are exported by default, but you can create a shell var like so
+
+```
+atuin dotfiles var set -n foo 'bar'
+```
+
+
+### Deleting a var
+
+Deleting a var is as simple as:
+
+```
+atuin dotfiles var delete NAME
+```
+
+For example, to delete the above var `FOO`:
+
+```
+atuin dotfiles var delete FOO
+```
+
+### Listing vars
+
+You can list all vars with:
+
+```
+atuin dotfiles var list
+```
+
+## Syncing and backing up dotfiles
 If you have [setup sync](/guide/sync), then running 
 
 ```

src/content/docs/reference/daemon.mdx

@@ -0,0 +1,31 @@
+---
+title: daemon
+---
+
+# `atuin daemon`
+_This is experimental!_
+
+The Atuin daemon is a background daemon designed to
+
+1. Speed up database writes
+2. Allow machines to sync when not in use, so they're ready to go right away
+3. Perform background maintenance
+
+It may also resolve issues with ZFS/SQLite performance.
+
+It's currently experimental, but is safe to use with a little bit of setup
+
+## To enable
+
+Add the following to the bottom of your Atuin config file
+
+```toml
+[daemon]
+enabled = true
+```
+
+Then, run `atuin daemon`. This might make sense in a tmux session, systemd unit, etc. Once it's ready for wider use, we will handle this setup for you.
+
+## Extra config
+
+See the [config section](/configuration/config/#daemon)