diff --git a/audit/build b/audit/build
index 4d653dc..acae24e 100755
--- a/audit/build
+++ b/audit/build
@@ -1,7 +1,6 @@
 #!/usr/bin/env bash
 set -euo pipefail
-export ACME="$HOME/gh/acme/ACME_Lib"
-ACME_BIN="$HOME/gh/acme/acme"
+ACME_BIN="$(git rev-parse --show-toplevel)/bin/acme"
 
 if [[ "${SKIP-}" == "" ]]
 then
diff --git a/bin/.acme-0.97.pkg b/bin/.acme-0.97.pkg
new file mode 120000
index 0000000..383f451
--- /dev/null
+++ b/bin/.acme-0.97.pkg
@@ -0,0 +1 @@
+hermit
\ No newline at end of file
diff --git a/bin/README.hermit.md b/bin/README.hermit.md
new file mode 100644
index 0000000..e889550
--- /dev/null
+++ b/bin/README.hermit.md
@@ -0,0 +1,7 @@
+# Hermit environment
+
+This is a [Hermit](https://github.com/cashapp/hermit) bin directory.
+
+The symlinks in this directory are managed by Hermit and will automatically
+download and install Hermit itself as well as packages. These packages are
+local to this environment.
diff --git a/bin/acme b/bin/acme
new file mode 120000
index 0000000..d5a7c8a
--- /dev/null
+++ b/bin/acme
@@ -0,0 +1 @@
+.acme-0.97.pkg
\ No newline at end of file
diff --git a/bin/activate-hermit b/bin/activate-hermit
new file mode 100755
index 0000000..3b191fb
--- /dev/null
+++ b/bin/activate-hermit
@@ -0,0 +1,19 @@
+#!/bin/bash
+# This file must be used with "source bin/activate-hermit" from bash or zsh.
+# You cannot run it directly
+
+if [ "${BASH_SOURCE-}" = "$0" ]; then
+  echo "You must source this script: \$ source $0" >&2
+  exit 33
+fi
+
+BIN_DIR="$(dirname "${BASH_SOURCE[0]:-${(%):-%x}}")"
+if "${BIN_DIR}/hermit" noop > /dev/null; then
+  eval "$("${BIN_DIR}/hermit" activate "${BIN_DIR}/..")"
+
+  if [ -n "${BASH-}" ] || [ -n "${ZSH_VERSION-}" ]; then
+      hash -r 2>/dev/null
+    fi
+
+    echo "Hermit environment $("${HERMIT_ENV}"/bin/hermit env HERMIT_ENV) activated"
+fi
diff --git a/bin/hermit b/bin/hermit
new file mode 100755
index 0000000..d13a24d
--- /dev/null
+++ b/bin/hermit
@@ -0,0 +1,26 @@
+#!/bin/bash
+
+set -eo pipefail
+
+if [ -z "${HERMIT_STATE_DIR}" ]; then
+  case "$(uname -s)" in
+  Darwin)
+    export HERMIT_STATE_DIR="${HOME}/Library/Caches/hermit"
+    ;;
+  Linux)
+    export HERMIT_STATE_DIR="${XDG_CACHE_HOME:-${HOME}/.cache}/hermit"
+    ;;
+  esac
+fi
+
+export HERMIT_DIST_URL="${HERMIT_DIST_URL:-https://github.com/cashapp/hermit/releases/download/stable}"
+HERMIT_CHANNEL="$(basename "${HERMIT_DIST_URL}")"
+export HERMIT_CHANNEL
+export HERMIT_EXE=${HERMIT_EXE:-${HERMIT_STATE_DIR}/pkg/hermit@${HERMIT_CHANNEL}/hermit}
+
+if [ ! -x "${HERMIT_EXE}" ]; then
+  echo "Bootstrapping ${HERMIT_EXE} from ${HERMIT_DIST_URL}" 1>&2
+  curl -fsSL "${HERMIT_DIST_URL}/install.sh" | /bin/bash 1>&2
+fi
+
+exec "${HERMIT_EXE}" --level=fatal exec "$0" -- "$@"
diff --git a/bin/hermit.hcl b/bin/hermit.hcl
new file mode 100644
index 0000000..0fa7f99
--- /dev/null
+++ b/bin/hermit.hcl
@@ -0,0 +1 @@
+sources = ["https://github.com/zellyn/retrocomputing-hermit-packages.git", "https://github.com/cashapp/hermit-packages.git"]
\ No newline at end of file