diff --git a/simplexup/install b/simplexup/install
index 94003a8..e3c9238 100755
--- a/simplexup/install
+++ b/simplexup/install
@@ -25,6 +25,10 @@ case $SHELL in
     PROFILE=$HOME/.bashrc
     PREF_SHELL=bash
     ;;
+*/fish)
+    PROFILE=$HOME/.config/fish/config.fish
+    PREF_SHELL=fish
+    ;;
 *)
     echo "simplexup: could not detect shell, manually add ${SIMPLEX_BIN_DIR} to your PATH."
     exit 1
@@ -33,7 +37,11 @@ esac
 # Only add simplexup if it isn't already in PATH.
 if [[ ":$PATH:" != *":${SIMPLEX_BIN_DIR}:"* ]]; then
     # Add the simplexup directory to the path and ensure the old PATH variables remain.
-    echo >> "$PROFILE" && echo "export PATH=\"\$PATH:$SIMPLEX_BIN_DIR\"" >> "$PROFILE"
+    if [[ "$PREF_SHELL" == "fish" ]]; then
+        echo >> "$PROFILE" && echo "fish_add_path -a \"$SIMPLEX_BIN_DIR\"" >> "$PROFILE"
+    else
+        echo >> "$PROFILE" && echo "export PATH=\"\$PATH:$SIMPLEX_BIN_DIR\"" >> "$PROFILE"
+    fi
 fi
 
 echo
diff --git a/simplexup/simplexup b/simplexup/simplexup
index 380804f..369701d 100755
--- a/simplexup/simplexup
+++ b/simplexup/simplexup
@@ -3,7 +3,7 @@ set -eo pipefail
 
 # NOTE: if you make modifications to this script, please increment the version number.
 # WARNING: the SemVer pattern: major.minor.patch must be followed as we use it to determine if the script is up to date.
-SIMPLEXUP_INSTALLER_VERSION="0.0.1"
+SIMPLEXUP_INSTALLER_VERSION="0.0.2"
 
 BASE_DIR=${XDG_CONFIG_HOME:-$HOME}
 SIMPLEX_DIR=${SIMPLEX_DIR:-"$BASE_DIR/.simplex"}
@@ -439,12 +439,12 @@ detect_platform_arch() {
     if [ "$(sysctl -n sysctl.proc_translated 2>/dev/null)" = "1" ]; then
       ARCHITECTURE="arm64" # Rosetta.
     else
-      ARCHITECTURE="amd64" # Intel.
+      ARCHITECTURE="x86_64" # Intel.
     fi
   elif [ "${ARCHITECTURE}" = "arm64" ] || [ "${ARCHITECTURE}" = "aarch64" ] ; then
     ARCHITECTURE="arm64" # Arm.
   else
-    ARCHITECTURE="amd64" # Amd.
+    ARCHITECTURE="x86_64" # Amd.
   fi
 }