diff --git a/.meta b/.meta
deleted file mode 100644
index 2de8754..0000000
--- a/.meta
+++ /dev/null
@@ -1,4 +0,0 @@
-org/*.org: text/plain
-misc/*: text/plain
-pgp: text/plain
-
diff --git a/gmi/docker/Dockerfile b/gmi/docker/Dockerfile
index 615a311..ebff9e8 100644
--- a/gmi/docker/Dockerfile
+++ b/gmi/docker/Dockerfile
@@ -2,16 +2,18 @@ FROM alpine:latest
 
 RUN sed -i 's/dl-cdn.alpinelinux.org/mirrors.tuna.tsinghua.edu.cn/g' /etc/apk/repositories \
     && sed -i 'a https://mirrors.tuna.tsinghua.edu.cn/alpine/edge/testing' /etc/apk/repositories \
-    && apk add agate git python3 perl \
+    && apk add gmid git python3 perl \
     && touch /var/log/git.log \
     && echo "0  *  *  *  *  run-parts /etc/periodic/hourly" > /var/spool/cron/crontabs/root
 
 RUN git clone https://github.com/dongdigua/dongdigua.github.io.git --depth 1 \
     && cd dongdigua.github.io \
     && git config filter.dater.smudge 'perl -pe "\$last_date = `git log --pretty=format:\\"%ad\\" -1`;s/\\\$Date\\\$/\\\$Date: \$last_date\\\$/"' \
-    && git config filter.dater.clean 'perl -pe "s/\\\$Date[^\\\$]*\\\$/\\\$Date\\\$/"' \
+    && git config filter.dater.clean 'perl -pe "s/\\\$Date[^\\\$]*\\\$/\\\$Date\\\$/"'
 
 COPY run-wrapper.sh .
+COPY gmid.conf /dongdigua.github.io/gmi/docker/
+COPY cgi/*     /dongdigua.github.io/gmi/docker/cgi/
 COPY update-git.sh /etc/periodic/hourly/
 
 # for testing purpose only
diff --git a/gmi/docker/cgi/stat.cgi b/gmi/docker/cgi/stat.cgi
new file mode 100755
index 0000000..337b116
--- /dev/null
+++ b/gmi/docker/cgi/stat.cgi
@@ -0,0 +1,4 @@
+#! /usr/bin/sh
+
+printf "20 text/gemini\r\n";
+printf "OS: $(uname -rv)\r\nuptime: $(uptime)\r\nserver: $SERVER_SOFTWARE\r\nauth: $AUTH\r\n";
diff --git a/gmi/docker/genkey.sh b/gmi/docker/genkey.sh
new file mode 100755
index 0000000..2a58a70
--- /dev/null
+++ b/gmi/docker/genkey.sh
@@ -0,0 +1,12 @@
+#! /usr/bin/sh
+
+if test -f /etc/ssl/gmid.pem; then
+    echo "OK certificate exists"
+else
+    echo "generating certificate..."
+    apk add libressl
+    libressl req -x509 -newkey rsa:4096 -nodes \
+        -keyout /etc/ssl/private/gmid.key \
+        -out /etc/ssl/gmid.pem \
+        -days 365 -subj "/CN=$GEMINI_HOST"
+fi
diff --git a/gmi/docker/gmid.conf b/gmi/docker/gmid.conf
new file mode 100644
index 0000000..8fe9fe3
--- /dev/null
+++ b/gmi/docker/gmid.conf
@@ -0,0 +1,9 @@
+server $gem_host {
+    cert "/etc/ssl/gmid.pem"
+    key "/etc/ssl/private/gmid.key"
+    root "/dongdigua.github.io"
+
+    cgi "/cgi/*"
+    default type "text/plain"
+}
+
diff --git a/gmi/docker/run-wrapper.sh b/gmi/docker/run-wrapper.sh
index 169d59d..350a657 100755
--- a/gmi/docker/run-wrapper.sh
+++ b/gmi/docker/run-wrapper.sh
@@ -1,8 +1,10 @@
 #! /bin/sh
 
+sh genkey.sh
+
 crond -f -d 8 &
 tail -f /var/log/git.log &
-agate -C --content dongdigua.github.io --hostname $GEMINI_HOST
+gmid -f -c /dongdigua.github.io/gmi/docker/gmid.conf -Dgem_host=$GEMINI_HOST
 
 wait -n
 echo $?
diff --git a/gmi/docker/update-git.sh b/gmi/docker/update-git.sh
index 11e9e2d..4cfccff 100755
--- a/gmi/docker/update-git.sh
+++ b/gmi/docker/update-git.sh
@@ -3,3 +3,4 @@
 cd /dongdigua.github.io
 git pull --rebase >> /var/log/git.log 2>&1
 python misc/mdlist2gmi.py > posts.gmi
+pkill -HUP gmid