diff --git a/scripts/taler-merchant/install_dual_terms.sh b/scripts/taler-merchant/install_dual_terms.sh
new file mode 100644
index 0000000..2855e3f
--- /dev/null
+++ b/scripts/taler-merchant/install_dual_terms.sh
@@ -0,0 +1,232 @@
+#!/bin/bash
+# Install dual-currency "No Formal Terms" ToS for the merchant backend.
+# Run as root inside the merchant container (taler-hacktivism).
+#
+# Sets files under TERMS_DIR/en/ for TERMS_ETAG = merchant-tos-dual-v0
+# (see configs/taler-merchant/merchant-overrides.conf).
+set -euo pipefail
+export PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin${PATH:+:$PATH}"
+
+ETAG="${TERMS_ETAG:-merchant-tos-dual-v2}"
+CONF="${TALER_MERCHANT_CONFIG:-/etc/taler-merchant/taler-merchant.conf}"
+
+DATA_HOME=""
+if command -v taler-config >/dev/null 2>&1; then
+ DATA_HOME=$(taler-config -c "$CONF" -f -s PATHS -o TALER_DATA_HOME 2>/dev/null || true)
+fi
+# common fallbacks
+for d in \
+ "$DATA_HOME" \
+ /var/lib/taler-merchant/ \
+ /var/lib/taler-merchant
+do
+ [ -n "${d:-}" ] || continue
+ d="${d%/}/"
+ if [ -d "$d" ] || mkdir -p "$d" 2>/dev/null; then
+ DATA_HOME="$d"
+ break
+ fi
+done
+DATA_HOME="${DATA_HOME:-/var/lib/taler-merchant/}"
+TERMS_DIR="${TERMS_DIR:-${DATA_HOME%/}/terms}"
+LANG_DIR="$TERMS_DIR/en"
+mkdir -p "$LANG_DIR"
+
+TITLE="No Formal Terms · Dual Currency Notice"
+
+BODY_MD='# No Formal Terms · Dual Currency Notice
+
+This is a **self-hosted GNU Taler merchant backend** at `taler.hacktivism.ch` (hacktivism.ch).
+
+**No formal terms of service** from Taler Operations AG (or any other third-party portal operator) apply to this instance. This short notice is the site policy for using the backend.
+
+## Dual currency
+
+This backend is configured for **two currencies at once**:
+
+- **GOA** — explorational / experimental currency of the local stack (`exchange.hacktivism.ch`, `bank.hacktivism.ch`). GOA is **not** legal tender. It has **no guaranteed real-world value**, redemption, or convertibility.
+- **CHF** — Swiss francs, a **real** currency. CHF amounts are real money settled via the CHF exchange configured on this host (taler-ops / TOPS infrastructure as deployed). Treat CHF with the seriousness of ordinary payments.
+
+By creating a merchant instance, accepting payments, or otherwise using this service you acknowledge that:
+
+- GOA is for exploration and testing only.
+- CHF involves real money — only use funds you control and can afford to risk on a self-hosted experimental stack.
+- There is no guaranteed availability, support, or uptime.
+- Operators may reset GOA state, change configuration, delete instance data, or interrupt service without notice.
+- Software is provided as-is, without warranty.
+
+If you do not agree, do not use this merchant backend.
+
+## Related
+
+- Exchange (GOA): https://exchange.hacktivism.ch/terms
+- Bank intro: https://bank.hacktivism.ch/intro/
+- Merchant intro: https://taler.hacktivism.ch/intro/
+'
+
+BODY_TXT='No Formal Terms · Dual Currency Notice
+
+This is a self-hosted GNU Taler merchant backend at taler.hacktivism.ch (hacktivism.ch).
+
+No formal terms of service from Taler Operations AG (or any other third-party portal operator) apply to this instance. This short notice is the site policy for using the backend.
+
+Dual currency
+-------------
+This backend is configured for two currencies at once:
+
+- GOA — explorational / experimental currency of the local stack
+ (exchange.hacktivism.ch, bank.hacktivism.ch). GOA is not legal tender.
+ It has no guaranteed real-world value, redemption, or convertibility.
+- CHF — Swiss francs, a real currency. CHF amounts are real money
+ settled via the CHF exchange configured on this host (taler-ops / TOPS
+ infrastructure as deployed). Treat CHF with the seriousness of
+ ordinary payments.
+
+By creating a merchant instance, accepting payments, or otherwise using
+this service you acknowledge that:
+
+- GOA is for exploration and testing only.
+- CHF involves real money — only use funds you control and can afford
+ to risk on a self-hosted experimental stack.
+- There is no guaranteed availability, support, or uptime.
+- Operators may reset GOA state, change configuration, delete instance
+ data, or interrupt service without notice.
+- Software is provided as-is, without warranty.
+
+If you do not agree, do not use this merchant backend.
+
+Related
+-------
+- Exchange (GOA): https://exchange.hacktivism.ch/terms
+- Bank intro: https://bank.hacktivism.ch/intro/
+- Merchant intro: https://taler.hacktivism.ch/intro/
+'
+
+printf '%s\n' "$BODY_TXT" >"$LANG_DIR/${ETAG}.txt"
+printf '%s\n' "$BODY_MD" >"$LANG_DIR/${ETAG}.md"
+
+# HTML (browser-friendly; style close to exchange short terms)
+cat >"$LANG_DIR/${ETAG}.html" <
+
+
+
+
+ ${TITLE}
+
+
+
+
taler.hacktivism.ch · merchant
+
${TITLE}
+
This is a self-hosted GNU Taler merchant backend at
+ taler.hacktivism.ch (hacktivism.ch).
+
No formal terms of service from Taler Operations AG
+ (or any other third-party portal operator) apply to this instance.
+ This short notice is the site policy for using the backend.
+
+
Dual currency
+
This backend is configured for two currencies at once:
+
+
+ GOA · explorational
+ Local stack currency
+ (exchange,
+ bank).
+ Not legal tender. No guaranteed real-world value, redemption, or convertibility.
+
+
+ CHF · real
+ Swiss francs. Real money, settled via the CHF exchange configured
+ on this host (taler-ops / TOPS infrastructure as deployed).
+ Treat CHF with the seriousness of ordinary payments.
+
+
+
+
By using this service you acknowledge
+
+
GOA is for exploration and testing only.
+
CHF involves real money — only use funds you control and can afford to risk on a self-hosted experimental stack.
+
There is no guaranteed availability, support, or uptime.
+
Operators may reset GOA state, change configuration, delete instance data, or interrupt service without notice.
+
Software is provided as-is, without warranty.
+
+
If you do not agree, do not use this merchant backend.