diff --git a/README.md b/README.md
index 531fbdc..081c3b5 100644
--- a/README.md
+++ b/README.md
@@ -14,7 +14,7 @@
 ### Install
 
 ```
-deno install -f --allow-run --allow-net https://deno.land/x/dkill@0.10.0/cli.ts
+deno install -f jsr:@sylc/dkill
 ```
 
 You can then use it using command `dkill`
diff --git a/cli.ts b/cli.ts
index eddf566..1accc1a 100644
--- a/cli.ts
+++ b/cli.ts
@@ -4,7 +4,7 @@ import { procList } from "./src/procList.ts";
 import { upgrader } from "./src/upgrader.ts";
 import { assertMinVersion } from "./src/utils/versions.ts";
 
-import vJson from "./version.json" with { type: "json" };
+import vJson from "./deno.json" with { type: "json" };
 
 // check minimum version of deno
 const minVRequired = "1.31.1"; // uses deno.Command
@@ -15,100 +15,106 @@ if (!assertMinVersion(Deno.version.deno, minVRequired)) {
   Deno.exit(1);
 }
 
-await new Command()
-  .name("dkill")
-  .version(vJson.version)
-  .description(
-    `Kill any processes by 
+export const run = async () => {
+  await new Command()
+    .name("dkill")
+    .version(vJson.version)
+    .description(
+      `Kill any processes by 
      - port: Prefix port number by a colon. ex: 'dkill :3000'
      - pid: A valid integer. ex: 'dkill 12654'
      - process name: A string ex: 'dkill Code.exe'
      
     You can specify multiple targets at once: 'dkill node.exe :5000 :3000 164'`,
-  )
-  .arguments("<...targets>")
-  .option("-i, --interactive", "Interactive mode (Not available on MacOS)", {
-    standalone: true,
-  })
-  .option("-v, --verbose", "Increase verbosity")
-  .option(
-    "-d, --dryrun",
-    "Dry run, List the pids that would have been killed. Does not kill anything",
-  )
-  .option(
-    "-u, --upgrade",
-    "Print out the command to upgrade if a new version is found. This will not process any other command",
-    {
+    )
+    .arguments("<...targets>")
+    .option("-i, --interactive", "Interactive mode (Not available on MacOS)", {
       standalone: true,
-    },
-  )
-  .action(
-    async (opts, ...targets) => {
-      if (opts.upgrade) {
-        // upgrading version.
-        await upgrader({
-          packageName: "dkill",
-          currentVersion: vJson.version,
-        });
-        return;
-      }
+    })
+    .option("-v, --verbose", "Increase verbosity")
+    .option(
+      "-d, --dryrun",
+      "Dry run, List the pids that would have been killed. Does not kill anything",
+    )
+    .option(
+      "-u, --upgrade",
+      "Print out the command to upgrade if a new version is found. This will not process any other command",
+      {
+        standalone: true,
+      },
+    )
+    .action(
+      async (opts, ...targets) => {
+        if (opts.upgrade) {
+          // upgrading version.
+          await upgrader({
+            packageName: "dkill",
+            currentVersion: vJson.version,
+          });
+          return;
+        }
 
-      const ports: number[] = [];
-      const pids: number[] = [];
-      const procs: string[] = [];
+        const ports: number[] = [];
+        const pids: number[] = [];
+        const procs: string[] = [];
 
-      if (opts.interactive) {
-        if (Deno.build.os === "darwin") {
-          console.error("Not implemented on macos");
-          Deno.exit(1);
-        }
-        // list processes
-        const pList = await procList();
-        const pickedProcesses: string[] = await Checkbox.prompt({
-          message: "Pick processes to kill",
-          options: pList.map((item) => ({
-            name: `${item.pid} | ${item.proc} | ${item.cmd}`,
-            value: `${item.pid}`,
-          })),
-          search: true,
-        });
-        pickedProcesses.forEach((p) => pids.push(+p));
-      } else {
-        targets.forEach((target) => {
-          // Check if port
-          if (target.startsWith(":")) {
-            const port = +target.slice(1);
-            if (!Number.isInteger(port)) {
-              console.log(`Invalid port number "port"`);
-              return;
-            }
-            ports.push(port);
-          } else if (Number.isInteger(+target)) {
-            // check if pid
-            pids.push(+target);
-          } else {
-            // must be a string
-            procs.push(target);
+        if (opts.interactive) {
+          if (Deno.build.os === "darwin") {
+            console.error("Not implemented on macos");
+            Deno.exit(1);
           }
-        });
-      }
-      const killed = await dkill(
-        { ports, pids, procs },
-        {
-          verbose: opts.verbose,
-          dryrun: opts.dryrun,
-          includeCmds: true,
-        },
-      );
+          // list processes
+          const pList = await procList();
+          const pickedProcesses: string[] = await Checkbox.prompt({
+            message: "Pick processes to kill",
+            options: pList.map((item) => ({
+              name: `${item.pid} | ${item.proc} | ${item.cmd}`,
+              value: `${item.pid}`,
+            })),
+            search: true,
+          });
+          pickedProcesses.forEach((p) => pids.push(+p));
+        } else {
+          targets.forEach((target) => {
+            // Check if port
+            if (target.startsWith(":")) {
+              const port = +target.slice(1);
+              if (!Number.isInteger(port)) {
+                console.log(`Invalid port number "port"`);
+                return;
+              }
+              ports.push(port);
+            } else if (Number.isInteger(+target)) {
+              // check if pid
+              pids.push(+target);
+            } else {
+              // must be a string
+              procs.push(target);
+            }
+          });
+        }
+        const killed = await dkill(
+          { ports, pids, procs },
+          {
+            verbose: opts.verbose,
+            dryrun: opts.dryrun,
+            includeCmds: true,
+          },
+        );
+
+        if (killed && killed.length) {
+          // TODO improve table output
+          // console.table(killed.map(pidItem => ({ ...pidItem, port: `:${pidItem.port}`, killed: pidItem.killed ? 'yes' : 'x'})));
+          console.table(killed);
+          opts?.dryrun && console.log("Nothing has been killed");
+        } else {
+          console.log("No process found");
+        }
+      },
+    )
+    .parse(Deno.args);
+};
 
-      if (killed && killed.length) {
-        // TODO improve table output
-        // console.table(killed.map(pidItem => ({ ...pidItem, port: `:${pidItem.port}`, killed: pidItem.killed ? 'yes' : 'x'})));
-        console.table(killed);
-        opts?.dryrun && console.log("Nothing has been killed");
-      } else {
-        console.log("No process found");
-      }
-    },
-  )
-  .parse(Deno.args);
+if (import.meta.main) {
+  await run();
+}
diff --git a/deno.jsonc b/deno.json
similarity index 58%
rename from deno.jsonc
rename to deno.json
index 2dd9f6b..7718adf 100644
--- a/deno.jsonc
+++ b/deno.json
@@ -6,13 +6,11 @@
     "test": "deno test --allow-run --allow-net --allow-read",
     "testm": "deno run --allow-run --allow-net ./src/tests/utils.ts",
     "dev": "deno run --allow-run --allow-net ./cli.ts",
-    "release": "deno run -A https://deno.land/x/release_up@0.7.0/cli.ts --regex \"(?<=@)(.*)(?=\/cli)\" --github --versionFile --changelog"
+    "release": "deno run -A https://deno.land/x/release_up@0.8.0/cli.ts --config ./tools/.release_up.json"
   },
   "fmt": {
-    "files": {
-      "exclude": [
-        "CHANGELOG.md"
-      ]
-    }
+    "exclude": [
+      "CHANGELOG.md"
+    ]
   }
 }
diff --git a/mod.ts b/mod.ts
index 981a617..ec5c5ae 100644
--- a/mod.ts
+++ b/mod.ts
@@ -4,3 +4,9 @@ export * from "./src/pidToCmd.ts";
 export * from "./src/portToPid.ts";
 export * from "./src/procList.ts";
 export * from "./src/procToPid.ts";
+
+import * as cli from "./cli.ts";
+
+if (import.meta.main) {
+  await cli.run();
+}
diff --git a/src/upgrader.ts b/src/upgrader.ts
index f7fa2a3..55642f3 100644
--- a/src/upgrader.ts
+++ b/src/upgrader.ts
@@ -1,13 +1,12 @@
-async function fetchNewFlags(url: string) {
-  const versionRes = await fetch(url);
-  const versionText = await versionRes.text();
-
-  const parsed = versionText.match(/denoFlags =[\s\S]*];/);
-  if (!parsed) throw Error("Cannot parse flags");
-  const flags = JSON.parse(
-    parsed[0].slice("denoFlags =".length, parsed[0].length - 1),
+async function fetchNewCommand(version: string) {
+  const readMeRes = await fetch(
+    `https://jsr.io/@sylc/dkill/${version}/README.md`,
   );
-  return flags;
+  const readmeText = await readMeRes.text();
+
+  const parsed = readmeText.match(/deno install .*/);
+  if (!parsed || parsed.length === 0) throw Error("Cannot parse new command");
+  return parsed[0];
 }
 
 export async function upgrader(config: {
@@ -22,22 +21,15 @@ export async function upgrader(config: {
     )
   ).json();
   // We do not consider the < comparison because
-  // it is unlikely to eb  > (not doing canary release)
+  // it is unlikely to be > (not doing canary release)
   // so if not equal, it must be lower version
+  // TODO: use @std/semver
   if (config.currentVersion !== versions.latest) {
-    const newFlags = await fetchNewFlags(
-      `https://deno.land/x/${config.packageName}@${versions.latest}/version.ts`,
-    );
-
-    console.log(
-      `Current version: ${config.currentVersion}; latest Version: ${versions.latest}`,
-    );
-    console.log("Run the below command to update:");
-    console.log(
-      `deno install -f ${
-        newFlags.join(" ")
-      } https://deno.land/x/${config.packageName}@${versions.latest}/cli.ts`,
-    );
+    // retrieve command from new version
+    // const command = await fetchNewCommand(versions.latest);
+    const command = await fetchNewCommand("0.10.1");
+    console.log("A new version is available. Run the below command to update:");
+    console.log(command);
   } else {
     console.log(
       `Local version ${config.currentVersion} is the most recent release`,
diff --git a/tools/.release_up.json b/tools/.release_up.json
new file mode 100644
index 0000000..344e2ef
--- /dev/null
+++ b/tools/.release_up.json
@@ -0,0 +1,14 @@
+{
+  "changelog": {},
+  "github": {
+    "release": true
+  },
+  "regex": [
+    {
+      "file": "deno.json",
+      "patterns": [
+        "(?<=\"version\": \")(.*)(?=\",)"
+      ]
+    }
+  ]
+}
diff --git a/version.json b/version.json
deleted file mode 100644
index 3b8a492..0000000
--- a/version.json
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-  "version": "0.10.1"
-}
diff --git a/version.ts b/version.ts
deleted file mode 100644
index c19120e..0000000
--- a/version.ts
+++ /dev/null
@@ -1,7 +0,0 @@
-// List of flags required to run the cli
-// experimental used by upgrader
-// deno-fmt-ignore
-export const denoFlags = [
-  "--allow-run",
-  "--allow-net"
-];