diff --git a/nimbus/constants.nim b/nimbus/constants.nim
index b3395e0e6..ea730110b 100644
--- a/nimbus/constants.nim
+++ b/nimbus/constants.nim
@@ -1,3 +1,5 @@
+{.used.}
+
 import
   eth/common, nimcrypto/hash
 
diff --git a/nimbus/nimbus.nim b/nimbus/nimbus.nim
index b37c65520..34c101d87 100644
--- a/nimbus/nimbus.nim
+++ b/nimbus/nimbus.nim
@@ -49,8 +49,8 @@ proc start(nimbus: NimbusNode) =
       {.gcsafe.}:
         let registry = defaultRegistry
       info "metrics", registry
-      addTimer(Moment.fromNow(conf.debug.logMetricsInterval.seconds), logMetrics)
-    addTimer(Moment.fromNow(conf.debug.logMetricsInterval.seconds), logMetrics)
+      discard setTimer(Moment.fromNow(conf.debug.logMetricsInterval.seconds), logMetrics)
+    discard setTimer(Moment.fromNow(conf.debug.logMetricsInterval.seconds), logMetrics)
 
   ## Creating RPC Server
   if RpcFlags.Enabled in conf.rpc.flags:
diff --git a/nimbus/rpc/p2p.nim b/nimbus/rpc/p2p.nim
index d1ffcdcf6..d456eacc7 100644
--- a/nimbus/rpc/p2p.nim
+++ b/nimbus/rpc/p2p.nim
@@ -28,7 +28,7 @@ import
 
 # Work around for https://github.com/nim-lang/Nim/issues/8645
 proc `%`*(value: Time): JsonNode =
-  result = %value.toSeconds
+  result = %value.toUnix
 
 template balance(addressDb: ReadOnlyStateDb, address: EthAddress): GasInt =
   # TODO: Account balance u256 but GasInt is int64?
@@ -107,7 +107,6 @@ proc setupEthRpc*(node: EthereumNode, chain: BaseChainDB, rpcsrv: RpcServer) =
     # TODO: Requires PeerPool to check sync state.
     # TODO: Use variant objects
     var
-      res: JsonNode
       sync: SyncState
     if true:
       # TODO: Populate sync state, this is a placeholder
@@ -237,20 +236,19 @@ proc setupEthRpc*(node: EthereumNode, chain: BaseChainDB, rpcsrv: RpcServer) =
     ## data: address.
     ## message: message to sign.
     ## Returns signature.
-    let accountDb = getAccountDb(chain.getCanonicalHead())
     var privateKey: PrivateKey  # TODO: Get from key store
     result = ("0x" & sign(privateKey, message.string)).HexDataStr
 
-  proc setupTransaction(send: EthSend): Transaction =
-    let
-      source = send.source.toAddress
-      destination = send.to.toAddress
-      data = nimcrypto.utils.fromHex(send.data.string)
-      contractCreation = false  # TODO: Check if has code
-      v = 0.byte # TODO
-      r = 0.u256
-      s = 0.u256
-    result = initTransaction(send.nonce, send.gasPrice, send.gas, destination, send.value, data, v, r, s, contractCreation)
+  # proc setupTransaction(send: EthSend): Transaction =
+  #   let
+  #     source = send.source.toAddress
+  #     destination = send.to.toAddress
+  #     data = nimcrypto.utils.fromHex(send.data.string)
+  #     contractCreation = false  # TODO: Check if has code
+  #     v = 0.byte # TODO
+  #     r = 0.u256
+  #     s = 0.u256
+  #   result = initTransaction(send.nonce, send.gasPrice, send.gas, destination, send.value, data, v, r, s, contractCreation)
 
   rpcsrv.rpc("eth_sendTransaction") do(obj: EthSend) -> HexDataStr:
     ## Creates new message call transaction or a contract creation, if the data field contains code.
diff --git a/nimbus/utils/difficulty.nim b/nimbus/utils/difficulty.nim
index 8bb747e08..1c8624df7 100644
--- a/nimbus/utils/difficulty.nim
+++ b/nimbus/utils/difficulty.nim
@@ -1,6 +1,5 @@
 import
-  times,
-  eth/common, stint,
+  times, eth/common, stint,
   ../constants, ../config
 
 const
diff --git a/nimbus/vm/interpreter_dispatch.nim b/nimbus/vm/interpreter_dispatch.nim
index 316791b0d..adeeaf66a 100644
--- a/nimbus/vm/interpreter_dispatch.nim
+++ b/nimbus/vm/interpreter_dispatch.nim
@@ -9,9 +9,8 @@ import
   tables, macros,
   chronicles,
   ./interpreter/[opcode_values, opcodes_impl, vm_forks, gas_costs, gas_meter, utils/macros_gen_opcodes],
-  ./code_stream,
-  ../vm_types, ../errors, precompiles,
-  ./stack, terminal # Those are only needed for logging
+  ./code_stream, ../vm_types, ../errors, precompiles, ./stack,
+  terminal # Those are only needed for logging
 
 logScope:
   topics = "vm opcode"