Since they day I looked at this codebase the subdir ./fiat made no sense to me

src/sc/hush

@@ -0,0 +1,7 @@
+#!/bin/bash
+# Copyright (c) 2018-2020 The Hush developers
+#set working directory to the location of this script
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+cd $DIR
+
+../hush-cli $@

src/sc/koolaid

@@ -0,0 +1,3 @@
+#!/bin/bash
+# Copyright (c) 2018-2020 The Hush developers
+./hush-smart-chain -ac_name=KOOLAID $@

src/sc/kush

@@ -0,0 +1,3 @@
+#!/bin/bash
+# Copyright (c) 2018-2020 The Hush developers
+./hush-smart-chain -ac_name=KUSH $@

src/sc/zex

@@ -0,0 +1,3 @@
+#!/bin/bash
+# Copyright (c) 2018-2020 The Hush developers
+./hush-smart-chain -ac_name=ZEX $@