diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 83bb95f..8aeca4c 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -13,7 +13,7 @@ jobs:
       matrix:
         nimversion:
         - 1.4.8
-        - git:6b97889f44d06f66
+        - 1.6.0
         os:
         - ubuntu-latest
         - macOS-latest
@@ -22,11 +22,11 @@ jobs:
     - uses: actions/checkout@v1
       with:
         submodules: true
-    - uses: iffy/install-nim@v3.2.0
+    - uses: iffy/install-nim@v4
       env:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       with:
-        nimversion: ${{ matrix.nimversion }}
+        version: ${{ matrix.nimversion }}
     - name: Test
       run: |
         nimble test
diff --git a/jester.nim b/jester.nim
index 56ac739..6950a3f 100644
--- a/jester.nim
+++ b/jester.nim
@@ -83,8 +83,14 @@ type
     of RouteCode:
       data: ResponseData
 
+  Startup = proc () {.closure, gcsafe.}
+
 const jesterVer = "0.6.0"
 
+proc doNothing(): Startup {.gcsafe.} =
+  result = proc () {.closure, gcsafe.} =
+    discard
+
 proc toStr(headers: Option[RawHeaders]): string =
   return $newHttpHeaders(headers.get(@({:})))
 
@@ -421,7 +427,8 @@ proc handleRequest(jes: Jester, httpReq: NativeRequest): Future[void] =
 proc newSettings*(
   port = Port(5000), staticDir = getCurrentDir() / "public",
   appName = "", bindAddr = "", reusePort = false, maxBody = 8388608, numThreads = 0,
-  futureErrorHandler: proc (fut: Future[void]) {.closure, gcsafe.} = nil
+  futureErrorHandler: proc (fut: Future[void]) {.closure, gcsafe.} = nil,
+  startup: Startup = doNothing()
 ): Settings =
   result = Settings(
     staticDir: normalizedPath(staticDir),
@@ -431,7 +438,8 @@ proc newSettings*(
     reusePort: reusePort,
     maxBody: maxBody,
     numThreads: numThreads,
-    futureErrorHandler: futureErrorHandler
+    futureErrorHandler: futureErrorHandler,
+    startup: startup
   )
 
 proc register*(self: var Jester, matcher: MatchProc) =
@@ -529,7 +537,7 @@ proc serve*(
       proc (req: httpbeast.Request): Future[void] =
          {.gcsafe.}:
           result = handleRequest(jes, req),
-      httpbeast.initSettings(self.settings.port, self.settings.bindAddr, self.settings.numThreads)
+      httpbeast.initSettings(self.settings.port, self.settings.bindAddr, self.settings.numThreads, startup = self.settings.startup)
     )
   else:
     self.httpServer = newAsyncHttpServer(reusePort=self.settings.reusePort, maxBody=self.settings.maxBody)
diff --git a/jester/private/utils.nim b/jester/private/utils.nim
index 30684fa..799d6e7 100644
--- a/jester/private/utils.nim
+++ b/jester/private/utils.nim
@@ -19,6 +19,7 @@ type
     maxBody*: int
     futureErrorHandler*: proc (fut: Future[void]) {.closure, gcsafe.}
     numThreads*: int # Only available with Httpbeast (`useHttpBeast = true`)
+    startup*: proc () {.closure, gcsafe.} # Only available with Httpbeast (`useHttpBeast = true`)
 
   JesterError* = object of Exception