diff --git a/sdata/subcmd-install/3.files-exp.sh b/sdata/subcmd-install/3.files-exp.sh
index 2606e3809..c483cdd98 100644
--- a/sdata/subcmd-install/3.files-exp.sh
+++ b/sdata/subcmd-install/3.files-exp.sh
@@ -1,7 +1,13 @@
 # This script is meant to be sourced.
 # It's not for directly running.
 
-# TODO: https://github.com/end-4/dots-hyprland/issues/2137
+# See https://github.com/end-4/dots-hyprland/issues/2137
+# 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: Implement user-define yaml with merging (override) ability for user who only wants little customization and is satisfied with most of the defaults.
+# TODO: Implement symlink (readable or non-readable) as sync mode
+# TODO: Implement --exp-file-reset-symlink to try to remove all symlink in .config and .local, which point to the local repo
+# TODO: Update help and doc about `--exp-files` and the yaml config, including the possible values of mode.
+# TODO: Support exclude pattern for each target to skip some files inside it.
 
 # Configuration file
 CONFIG_FILE="sdata/subcmd-install/3.files.yaml"
diff --git a/sdata/subcmd-install/options.sh b/sdata/subcmd-install/options.sh
index d60705354..5116ab9d5 100644
--- a/sdata/subcmd-install/options.sh
+++ b/sdata/subcmd-install/options.sh
@@ -27,14 +27,20 @@ Options for install:
                             Possible values of <set>: $(ls -A ${REPO_ROOT}/dots-extra/fontsets)
 ${STY_CYAN}
 New features (experimental):
-      --exp-files           Use yaml-based config for the third step copying files.
-                            This feature is ${STY_YELLOW}still on early stage${STY_CYAN}, feedback and contribution welcomed,
-                            see https://github.com/end-4/dots-hyprland/issues/2137 for details.
-      --via-nix             Use Nix and Home-manager to install dependencies.
-                            This feature is ${STY_RED}working in progress${STY_CYAN}. Contribution is welcomed,
-                            see https://github.com/end-4/dots-hyprland/issues/1061 for details.
+      --exp-files             Use yaml-based config for the third step copying files.
+                              This feature is ${STY_YELLOW}still on early stage${STY_CYAN},
+                              feedback and contribution welcomed,
+                              see https://github.com/end-4/dots-hyprland/issues/2137 for details.
+      --via-nix               Use Nix and Home-manager to install dependencies.
+                              This feature is ${STY_RED}working in progress${STY_CYAN}. Contribution is welcomed,
+                              see https://github.com/end-4/dots-hyprland/issues/1061 for details.
 ${STY_RST}"
 }
+# TODO: implement options below for --exp-files
+#      --exp-files-path <path> Use <path> instead of the default yaml config
+#      --exp-files-no-strict   Ignore error when minor version number is not the same
+#      --exp-files-regen       Force copy the default config to ${EXP_FILE_PATH}
+#                              (auto do this when not existed)
 
 cleancache(){
   rm -rf "${REPO_ROOT}/cache"