diff --git a/styx/styx.nim b/styx/styx.nim
index c68b405..dd0d272 100644
--- a/styx/styx.nim
+++ b/styx/styx.nim
@@ -4,7 +4,13 @@ from std/nativesockets import getHostname
 
 var logger = newConsoleLogger()
 addHandler(logger)
-let summaryFile = getEnv("GITHUB_STEP_SUMMARY")
+
+let summaryFilePath = getEnv("GITHUB_STEP_SUMMARY")
+
+proc writeToSummary(msg: string) = 
+  let f = open(summaryFilePath, mode = fmAppend)
+  write(f,msg)
+  close(f)
 
 type
   StyxContext = object
@@ -34,8 +40,8 @@ proc dry(c: StyxContext) =
   execQuit "nix build " & c.systemFlakePath & " --dry-run"
 
 proc cache(c: StyxContext) =
-  # Simple benchmarking
-  let start = cpuTime()
+  ## build and upload to binary cache
+  let start = getTime()
   let code = execCmd """
     cachix watch-exec """ & c.cache & """ \
         -- \
@@ -43,17 +49,26 @@ proc cache(c: StyxContext) =
         --print-build-logs \
         --accept-flake-config
     """
-  let duration = (cpuTime() - start)
+  let duration = (getTime() - start)
   if code != 0:
-    error "faile to build configuration for: ", c.host
+    error "failed to build configuration for: ", c.host
 
-  if summaryFile != "":
-    writeFile(
-      summaryFile,
+  if summaryFilePath != "":
+    writeToSummary(
       "Built host: " & c.host & " in " & $duration & " seconds"
     )
   info "Built host: " & c.host & " in " & $duration & " seconds"
 
+proc touchPr(c: StyxContext) =
+  const cmds = ["git branch -D update_flake_lock_action",
+   "git fetch origin",
+   "git checkout update_flake_lock_action",
+   "git commit --amend --no-edit",
+   "git push origin update_flake_lock_action --force"]
+  for cmd in cmds:
+    let code = execCmd cmd
+    if code != 0:
+      error "command: ",cmd,"exited with code: ",$code
 
 proc nixosRebuild(c: StyxContext, cmd: string) =
   execQuit "sudo nixos-rebuild " & cmd & " " & " --flake " & c.flake
@@ -64,20 +79,7 @@ proc boot(c: StyxContext) =
 
 proc switch(c: StyxContext) =
   ## nixos rebuild switch
-  nixosRebuild c, "swith"
-
-
-# proc matchCmd(cmd: string): proc = 
-#   case cmd:
-#     of "dry": dry
-#     of "switch": switch
-#     of "boot": boot
-#     of "cache": cache
-#     of "build": build
-#     else:
-#       error "unknown command", cmd
-#       quit 1
-#
+  nixosRebuild c, "switch"
 
 proc runCmd(c: StyxContext, cmd: string) =
   case cmd:
@@ -86,6 +88,7 @@ proc runCmd(c: StyxContext, cmd: string) =
     of "boot": boot c
     of "cache": cache c
     of "build": build c
+    of "touch-pr": touchPr c
     else:
       error "unknown command: ", cmd
       quit 1
@@ -94,14 +97,15 @@ proc runCmd(c: StyxContext, cmd: string) =
 const usage = """
 styx <cmd> [opts]
   commands:
-    dry     poor man's nix flake check
-    boot    nixos-rebuild boot
-    switch  nixos-rebuild switch
-    cache   build and push to cachix
-    build   build system flake
+    dry      poor man's nix flake check
+    boot     nixos-rebuild boot
+    switch   nixos-rebuild switch
+    cache    build and push to cachix
+    build    build system flake
+    touch-pr trigger Github Action Ci
 
   options:
-    -?|--help  > show this help
+    --help     > show this help
     -h|--host  > hostname (current host)
     -f|--flake > path to flake ($FLAKE_PATH or $HOME/styx)
     -c|--cache > name of cachix binary cache (daylin)
@@ -131,6 +135,8 @@ when isMainModule:
       parseFlag c, key, val
     of cmdEnd:
       discard
-
+  if cmd == "":
+    echo "please specify a command, see below"
+    echo usage; quit 1
   info $c
   runCmd c, cmd