diff --git a/advisorycircular.sh b/advisorycircular.sh
index 0c1ce13..22ee7d3 100644
--- a/advisorycircular.sh
+++ b/advisorycircular.sh
@@ -2,9 +2,12 @@
 set -e
 
 dir=$(dirname "$0")
-config_dir=/etc/advisorycircular
 instance="$1"
+config_dir=/etc/advisorycircular
+run_dir=/var/run/advisorycircular
+sqb_path=/usr/local/share/run/advisorycircular/clean-basestation.sqb
 
-config_path="$config_dir"/"$instance".conf
-secrets_path="$config_dir"/"$instance".secret
-"$dir"/intervalexec 10 node $dir/out/advisorycircular.js --config "$config_path" --secrets "$secrets_path"
+config_path="$config_dir"/"$instance"-config.yaml
+secrets_path="$config_dir"/"$instance"-secrets.yaml
+history_path="$run_dir"/"$instance"-history.edn
+(cd "$run_dir" && "$dir"/intervalexec 10 node $dir/out/advisorycircular.js --config "$config_path" --secrets "$secrets_path" --basestation-sqb "$sqb_path" --history "$history_path")
diff --git a/install.sh b/install.sh
index a66d271..5e1c8e0 100755
--- a/install.sh
+++ b/install.sh
@@ -2,16 +2,18 @@
 set -e
 install_path=/usr/local/share/advisorycircular
 config_path=/etc/advisorycircular
+run_path=/var/run/advisorycircular
 user=advisorycircular
 
-# Create install and config directories if they doesn't exist.
-mkdir -p "$install_path"
-mkdir -p "$config_path"
+# Create install, config, and run directories if they doesn't exist.
+sudo mkdir -p "$install_path"
+sudo mkdir -p "$config_path"
+sudo mkdir -p "$run_path"
 
 # Create advisory-circular user if it doesn't exist.
 if ! id -u ${user} 2>/dev/null
 then
-    adduser --system --home ${install_path} --no-create-home --quiet ${user}
+    sudo adduser --system --home ${install_path} --no-create-home --quiet ${user}
 fi
 
 # Compile.
@@ -19,14 +21,19 @@ npm install
 npx shadow-cljs compile script
 
 # Install
-install intervalexec.py advisorycircular "$install_path"/intervalexec
-install advisorycircular.sh "$install_path"/advisorycircular
-cp -r node_modules "$install_path"
-cp -r .shadow-cljs "$install_path"
-mkdir -p "$install_path"/out
-cp out/advisorycircular.js "$install_path"/out
-chown -R "$user" "$install_path"
+sudo install intervalexec.py "$install_path"/intervalexec
+sudo install advisorycircular.sh "$install_path"/advisorycircular
+sudo cp -r node_modules "$install_path"
+sudo cp -r .shadow-cljs "$install_path"
+sudo mkdir -p "$install_path"/out
+sudo cp out/advisorycircular.js "$install_path"/out
+sudo cp clean-basestation.sqb "$install_path"
+sudo chown -R "$user" "$install_path"
 
-cp config-skel.yaml "$config_path"
-cp secrets-skel.yaml "$config_path"
-chown -R "$user" "$config_path"
+sudo cp config-skel.yaml "$config_path"
+sudo cp secrets-skel.yaml "$config_path"
+sudo chmod go-r "$config_path"/secrets-skel.yaml
+sudo chown -R "$user" "$config_path"
+
+sudo chown -R "$user" "$run_path"
+sudo chmod go-w "$run_path"
diff --git a/package-lock.json b/package-lock.json
index c826ccd..ee656a2 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,5 +1,5 @@
 {
-  "name": "circlebot",
+  "name": "advisorycircular",
   "version": "0.0.1",
   "lockfileVersion": 1,
   "requires": true,
@@ -589,9 +589,9 @@
       "integrity": "sha512-eGuFFw7Upda+g4p+QHvnW0RyTX/SVeJBDM/gCtMARO0cLuT2HcEKnTPvhjV6aGeqrCB/sbNop0Kszm0jsaWU4A=="
     },
     "events": {
-      "version": "3.0.0",
-      "resolved": "https://registry.npmjs.org/events/-/events-3.0.0.tgz",
-      "integrity": "sha512-Dc381HFWJzEOhQ+d8pkNon++bk9h6cdAoAj4iE6Q4y6xgTzySWXlKn05/TVNpjnfRqi/X0EpJEJohPjNI3zpVA==",
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/events/-/events-3.1.0.tgz",
+      "integrity": "sha512-Rv+u8MLHNOdMjTAFeT3nCjHn2aGlx435FP/sDHNaRhDEMwyI/aB22Kj2qIN8R0cw3z28psEQLYwxVKLsKrMgWg==",
       "dev": true
     },
     "evp_bytestokey": {
@@ -757,13 +757,33 @@
       "integrity": "sha1-4Ob+aijPUROIVeCG0Wkedx3iqLk="
     },
     "hash-base": {
-      "version": "3.0.4",
-      "resolved": "https://registry.npmjs.org/hash-base/-/hash-base-3.0.4.tgz",
-      "integrity": "sha1-X8hoaEfs1zSZQDMZprCj8/auSRg=",
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/hash-base/-/hash-base-3.1.0.tgz",
+      "integrity": "sha512-1nmYp/rhMDiE7AYkDw+lLwlAzz0AntGIe51F3RfFfEqyQ3feY2eI/NcwC6umIQVOASPMsWJLJScWKSSvzL9IVA==",
       "dev": true,
       "requires": {
-        "inherits": "^2.0.1",
-        "safe-buffer": "^5.0.1"
+        "inherits": "^2.0.4",
+        "readable-stream": "^3.6.0",
+        "safe-buffer": "^5.2.0"
+      },
+      "dependencies": {
+        "readable-stream": {
+          "version": "3.6.0",
+          "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-3.6.0.tgz",
+          "integrity": "sha512-BViHy7LKeTz4oNnkcLJ+lVSL6vpiFeX6/d3oSH8zCW7UxP2onchk+vTGB143xuFjHS3deTgkKoXXymXqymiIdA==",
+          "dev": true,
+          "requires": {
+            "inherits": "^2.0.3",
+            "string_decoder": "^1.1.1",
+            "util-deprecate": "^1.0.1"
+          }
+        },
+        "safe-buffer": {
+          "version": "5.2.0",
+          "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.0.tgz",
+          "integrity": "sha512-fZEwUGbVl7kouZs1jCdMLdt95hdIv0ZeHg6L7qPeciMZhZ+/gdesW4wgTARkrFWEpspjEATAzUGPG8N2jJiwbg==",
+          "dev": true
+        }
       }
     },
     "hash.js": {
@@ -1239,9 +1259,9 @@
       }
     },
     "pako": {
-      "version": "1.0.10",
-      "resolved": "https://registry.npmjs.org/pako/-/pako-1.0.10.tgz",
-      "integrity": "sha512-0DTvPVU3ed8+HNXOu5Bs+o//Mbdj9VNQMUOe9oKCwh8l0GNwpTDMKCWbRjgtD291AWnkAgkqA/LOnQS8AmS1tw==",
+      "version": "1.0.11",
+      "resolved": "https://registry.npmjs.org/pako/-/pako-1.0.11.tgz",
+      "integrity": "sha512-4hLB8Py4zZce5s4yd9XzopqwVv/yGNhV1Bl8NTmCq1763HeK2+EwVTv+leGeL13Dnh2wfbqowVPXCIO0z4taYw==",
       "dev": true
     },
     "parse-asn1": {
@@ -1531,15 +1551,14 @@
       }
     },
     "shadow-cljs": {
-      "version": "2.8.83",
-      "resolved": "https://registry.npmjs.org/shadow-cljs/-/shadow-cljs-2.8.83.tgz",
-      "integrity": "sha512-oqqSLARvYXopA9QLf5znrguvJOSRm65LYL9XHuRWaUbMGXlygqgCjSFgW1yREXmqUQ+i2TLoA1zulYO6nTTy6g==",
+      "version": "2.8.109",
+      "resolved": "https://registry.npmjs.org/shadow-cljs/-/shadow-cljs-2.8.109.tgz",
+      "integrity": "sha512-xUN5kBYgyk2OVv3Gz9/dxJdDNoImskYg6VNLpHkubCG46Q1Lv9tymd11Hyekka6WWk24QCNSVIyPta82txZGfQ==",
       "dev": true,
       "requires": {
-        "mkdirp": "^0.5.1",
         "node-libs-browser": "^2.0.0",
         "readline-sync": "^1.4.7",
-        "shadow-cljs-jar": "1.3.1",
+        "shadow-cljs-jar": "1.3.2",
         "source-map-support": "^0.4.15",
         "which": "^1.3.1",
         "ws": "^3.0.0"
@@ -1559,9 +1578,9 @@
       }
     },
     "shadow-cljs-jar": {
-      "version": "1.3.1",
-      "resolved": "https://registry.npmjs.org/shadow-cljs-jar/-/shadow-cljs-jar-1.3.1.tgz",
-      "integrity": "sha512-IJSm4Gfu/wWDsOQ0wNrSxuaGdjzsd78us+3bop3cpWsoO2Igdu6VIBItYrZHRRBKl5LIZKXfnSh/2eWG3C1EFw==",
+      "version": "1.3.2",
+      "resolved": "https://registry.npmjs.org/shadow-cljs-jar/-/shadow-cljs-jar-1.3.2.tgz",
+      "integrity": "sha512-XmeffAZHv8z7451kzeq9oKh8fh278Ak+UIOGGrapyqrFBB773xN8vMQ3O7J7TYLnb9BUwcqadKkmgaq7q6fhZg==",
       "dev": true
     },
     "signal-exit": {
diff --git a/package.json b/package.json
index 045fd46..711db4d 100644
--- a/package.json
+++ b/package.json
@@ -3,7 +3,7 @@
   "version": "0.0.1",
   "private": true,
   "devDependencies": {
-    "shadow-cljs": "^2.8.83"
+    "shadow-cljs": "^2.8.109"
   },
   "dependencies": {
     "commander": "^4.0.1",
diff --git a/src/main/lemondronor/advisorycircular.cljs b/src/main/lemondronor/advisorycircular.cljs
index 2137348..b39b965 100644
--- a/src/main/lemondronor/advisorycircular.cljs
+++ b/src/main/lemondronor/advisorycircular.cljs
@@ -541,7 +541,7 @@
    ;; close to an airport, then it's probably just doing flight
    ;; training.
    :minimum-airport-distance-km 2.5
-   :history-db-path "advisory-circular.db"
+   :history-db-path "advisorycircular.edn"
    :basestation-sqb "basestation.sqb"
    :twitter {:enabled? true}})
 
@@ -560,6 +560,8 @@
     (assoc-in [:pelias :url] (.-peliasUrl commander))
     (.-basestationSqb commander)
     (assoc :basestation-sqb (.-basestationSqb commander))
+    (.-history commander)
+    (assoc :history-db-path (.-history commander))
     (.-lat commander)
     (assoc :lat (.-lat commander))
     (.-lon commander)
@@ -607,6 +609,7 @@
       (.option "--no-tweeting" "Do not tweet")
       (.option "--config <path>" "Path to the configuration yaml file")
       (.option "--secrets <path>" "Path to the secrets yaml file" "secrets.yaml")
+      (.option "--history <path>" "Path to history/state file" "advisorycircular.edn")
       (.parse (.-argv js/process)))
   (let [start-time (current-time)]
     ;; If --config-path is specified, definitely try to read that
@@ -621,7 +624,11 @@
               secrets (util/read-config (.-secrets commander))
               config (build-config base-config cli-config secrets)
               _ (validate-config config)
-              db (read-history-db (:history-db-path config))
+              history-db-path (:history-db-path config)
+              _ (when (not (fs/existsSync history-db-path))
+                  (log-info "%s does not exist; creating empty one." history-db-path)
+                  (write-history-db {} history-db-path))
+              db (read-history-db history-db-path)
               data (get-adsbexchange-live-data
                     {:url (get-in config [:adsbx :url])
                      :api-key (get-in config [:adsbx :api-key])
@@ -645,6 +652,7 @@
              (count new-db)
              (count potential-circles)))))
       (p/catch :default e
+        (log-error "%s" e)
         (log-error "%s" (.-stack e))
         (.exit js/process 1)))))