diff --git a/dots-extra/vianix/README.md b/dots-extra/vianix/README.md
new file mode 100644
index 000000000..5f77637f9
--- /dev/null
+++ b/dots-extra/vianix/README.md
@@ -0,0 +1 @@
+This folder contains tweakd configs when --via-nix is specified.
diff --git a/dots-extra/vianix/hypridle.conf b/dots-extra/vianix/hypridle.conf
new file mode 100644
index 000000000..6f1858607
--- /dev/null
+++ b/dots-extra/vianix/hypridle.conf
@@ -0,0 +1,26 @@
+$lock_cmd = swaylock
+# $lock_cmd = pidof hyprlock || hyprlock
+$suspend_cmd = systemctl suspend || loginctl suspend
+
+general {
+    lock_cmd = $lock_cmd
+    before_sleep_cmd = loginctl lock-session
+    after_sleep_cmd = hyprctl dispatch global quickshell:lockFocus
+    inhibit_sleep = 3
+}
+
+listener {
+    timeout = 300 # 5mins
+    on-timeout = loginctl lock-session
+}
+
+listener {
+    timeout = 600 # 10mins
+    on-timeout = hyprctl dispatch dpms off
+    on-resume = hyprctl dispatch dpms on
+}
+
+listener {
+    timeout = 900 # 15mins
+    on-timeout = $suspend_cmd
+}
diff --git a/sdata/subcmd-install/3.files-exp.sh b/sdata/subcmd-install/3.files-exp.sh
index 8f0bcd8f9..0ff62c0e3 100644
--- a/sdata/subcmd-install/3.files-exp.sh
+++ b/sdata/subcmd-install/3.files-exp.sh
@@ -9,6 +9,7 @@
 # TODO: add --exp-files-regen         Force copy the default config to ${EXP_FILE_PATH} (auto do this when not existed)
 # TODO: Implement versioning, i.e. when user-defined yaml config file has version number mismatch with the default one, produce error. If only minor version number is not the same, the error can be ommitted via --exp-file-no-strict .
 # TODO: add --exp-files-no-strict     Ignore error when minor version number is not the same
+# TODO: When --via-nix is specified, use dots-extra/vianix/hypridle.conf instead
 #
 # Stage 2 todos:
 # TODO: Implement bool key symlink (both read-write and read-only), when the value of `symlink` is true, then instead using `rsync` or `cp`, use `ln`.
diff --git a/sdata/subcmd-install/3.files-legacy.sh b/sdata/subcmd-install/3.files-legacy.sh
index 608b4ac6d..88337a1db 100644
--- a/sdata/subcmd-install/3.files-legacy.sh
+++ b/sdata/subcmd-install/3.files-legacy.sh
@@ -3,6 +3,7 @@
 
 # shellcheck shell=bash
 
+# TODO: When --via-nix is specified, use dots-extra/vianix/hypridle.conf instead
 # In case some dirs does not exists
 v mkdir -p $XDG_BIN_HOME $XDG_CACHE_HOME $XDG_CONFIG_HOME $XDG_DATA_HOME/icons