Add refs/tarball hint to README and env

.env.example

@@ -44,7 +44,7 @@ GNUNET_REF=v0.26.1
 EXCHANGE_REF=master
 MERCHANT_REF=master
 LIBEUFIN_REF=master
-GNUNET_TARBALL_URL=
+GNUNET_TARBALL_URL=https://git-www.taler.net/gnunet.git/snapshot/gnunet-512c42a713e52a2033928a302e445376d3bcb3a7.tar.gz
 
 # Secrets path (host path mounted into /etc/taler/secrets)
 EXCHANGE_SECRETS_PATH=./exchange/secrets

README-DE.md

@@ -37,6 +37,7 @@ Container-Stack für GNU Taler (Exchange, Merchant, LibEuFin Bank) mit optionale
 - Wenn `ENABLE_EXCHANGE_ACCOUNT=0`, musst du das Offline-Tool manuell ausführen (`scripts/enable-exchange-account.sh` im Exchange-Container).
 - Bei eigener CA `EXCHANGE_CURL_OPTS="-k"` setzen, wenn der Offline-Job `/keys` über HTTPS abfragt.
 - Nach Passwortänderungen in `.env` ist kein manuelles SQL-Rendering nötig; das Init-Skript liest sie beim Start.
+- Release-Refs/Tarballs: Tags/Commits unter `https://git.taler.net/{gnunet,exchange,merchant,libeufin}.git/` ansehen (Tarballs via `.../snapshot/<tag>.tar.gz`) und `*_REF`/`GNUNET_TARBALL_URL` entsprechend setzen.
 
 ## Nützliche Kommandos
 - Logs: `docker compose logs -f exchange` (oder bank/merchant/caddy/wordpress).

README.md

@@ -37,6 +37,7 @@ Container stack for GNU Taler (Exchange, Merchant, LibEuFin Bank) with optional
 - If `ENABLE_EXCHANGE_ACCOUNT=0`, run the offline tool manually (`scripts/enable-exchange-account.sh` inside the exchange container).
 - With custom CAs, set `EXCHANGE_CURL_OPTS="-k"` if the offline job needs to curl `/keys` over HTTPS.
 - After changing DB passwords in `.env`, no manual SQL rendering is needed—the init script reads them at container start.
+- Release refs/tarballs: Browse tags/commits at `https://git.taler.net/{gnunet,exchange,merchant,libeufin}.git/` (Tarballs via `.../snapshot/<tag>.tar.gz`) and set `*_REF`/`GNUNET_TARBALL_URL` accordingly.
 
 ## Useful commands
 - Logs: `docker compose logs -f exchange` (or bank/merchant/caddy/wordpress).