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diff --git a/home-config/fish/functions/_fzf_wrapper.fish b/home-config/fish/functions/_fzf_wrapper.fish
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+++ b/home-config/fish/functions/_fzf_wrapper.fish
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+function _fzf_wrapper --description "Prepares some environment variables before executing fzf."
+    # Make sure fzf uses fish to execute preview commands, some of which
+    # are autoloaded fish functions so don't exist in other shells.
+    # Use --function so that it doesn't clobber SHELL outside this function.
+    set -f --export SHELL (command --search fish)
+
+    # If FZF_DEFAULT_OPTS is not set, then set some sane defaults.
+    # See https://github.com/junegunn/fzf#environment-variables
+    if not set --query FZF_DEFAULT_OPTS
+        # cycle allows jumping between the first and last results, making scrolling faster
+        # layout=reverse lists results top to bottom, mimicking the familiar layouts of git log, history, and env
+        # border shows where the fzf window begins and ends
+        # height=90% leaves space to see the current command and some scrollback, maintaining context of work
+        # preview-window=wrap wraps long lines in the preview window, making reading easier
+        # marker=* makes the multi-select marker more distinguishable from the pointer (since both default to >)
+        set --export FZF_DEFAULT_OPTS '--cycle --layout=reverse --border --height=90% --preview-window=wrap --marker="*"'
+    end
+
+    fzf $argv
+end