diff --git a/builtin.go b/builtin.go
index e39c5ee..4c8a19d 100644
--- a/builtin.go
+++ b/builtin.go
@@ -129,6 +129,8 @@ func handleConnect(c *Client, e Event) {
 
 // nickCollisionHandler helps prevent the client from having conflicting
 // nicknames with another bot, user, etc.
+//
+//goland:noinspection GoUnusedParameter
 func nickCollisionHandler(c *Client, e Event) {
 	if c.Config.HandleNickCollide == nil {
 		c.Cmd.Nick(c.GetNick() + "_")
@@ -146,6 +148,7 @@ func handlePING(c *Client, e Event) {
 	c.Cmd.Pong(e.Last())
 }
 
+//goland:noinspection GoUnusedParameter
 func handlePONG(c *Client, e Event) {
 	c.conn.lastPong.Store(time.Now())
 }
diff --git a/cap_tags.go b/cap_tags.go
index 3b3b066..6ba6262 100644
--- a/cap_tags.go
+++ b/cap_tags.go
@@ -51,9 +51,12 @@ type Tags map[string]string
 
 // ParseTags parses out the key-value map of tags. raw should only be the tag
 // data, not a full message. For example:
-//   @aaa=bbb;ccc;example.com/ddd=eee
+//
+//	@aaa=bbb;ccc;example.com/ddd=eee
+//
 // NOT:
-//   @aaa=bbb;ccc;example.com/ddd=eee :nick!ident@host.com PRIVMSG me :Hello
+//
+//	@aaa=bbb;ccc;example.com/ddd=eee :nick!ident@host.com PRIVMSG me :Hello
 //
 // Technically, there is a length limit of 4096, but the server should reject
 // tag messages longer than this.
@@ -249,10 +252,6 @@ func (t Tags) Get(key string) (tag string, success bool) {
 // Set escapes given value and saves it as the value for given key. Note that
 // this is not concurrent safe.
 func (t Tags) Set(key, value string) error {
-	if t == nil {
-		t = make(Tags)
-	}
-
 	if !validTag(key) {
 		return fmt.Errorf("tag key %q is invalid", key)
 	}
diff --git a/codebook.go b/codebook.go
index 36cbd42..095291e 100644
--- a/codebook.go
+++ b/codebook.go
@@ -4,6 +4,7 @@ package girc
 IRCNumToStr takes in a numeric IRC code and returns the relevant girc name.
 IRCNumToStr accepts a string because that's how we tend to receive the codes.
 */
+//goland:noinspection GoUnusedExportedFunction
 func IRCNumToStr(code string) string {
 	if _, ok := noTranslate[code]; ok {
 		return code
diff --git a/commands.go b/commands.go
index 192c80c..f8d3728 100644
--- a/commands.go
+++ b/commands.go
@@ -120,6 +120,7 @@ func (cmd *Commands) Messagef(target, format string, a ...interface{}) {
 // server.)
 var ErrInvalidSource = errors.New("event has nil or invalid source address")
 
+// ErrDontKnowUser is returned when a method needs to know the origin of an event,
 var ErrDontKnowUser = errors.New("failed to lookup target user")
 
 // Reply sends a reply to channel or user, based on where the supplied event
diff --git a/constants.go b/constants.go
index b9af805..f879f78 100644
--- a/constants.go
+++ b/constants.go
@@ -5,6 +5,8 @@
 package girc
 
 // Standard CTCP based constants.
+//
+//goland:noinspection ALL
 const (
 	CTCP_ACTION     = "ACTION"
 	CTCP_PING       = "PING"
@@ -20,6 +22,8 @@ const (
 
 // Emulated event commands used to allow easier hooks into the changing
 // state of the client.
+//
+//goland:noinspection ALL
 const (
 	UPDATE_STATE     = "CLIENT_STATE_UPDATED"   // when channel/user state is updated.
 	UPDATE_GENERAL   = "CLIENT_GENERAL_UPDATED" // when general state (client nick, server name, etc) is updated.
@@ -33,6 +37,8 @@ const (
 )
 
 // User/channel prefixes :: RFC1459.
+//
+//goland:noinspection ALL
 const (
 	DefaultPrefixes = "(ov)@+" // the most common default prefixes
 	ModeAddPrefix   = "+"      // modes are being added
@@ -48,6 +54,8 @@ const (
 )
 
 // User modes :: RFC1459; section 4.2.3.2.
+//
+//goland:noinspection ALL
 const (
 	UserModeInvisible     = "i" // invisible
 	UserModeOperator      = "o" // server operator
@@ -56,6 +64,8 @@ const (
 )
 
 // Channel modes :: RFC1459; section 4.2.3.1.
+//
+//goland:noinspection ALL
 const (
 	ModeDefaults = "beI,k,l,imnpst" // the most common default modes
 
@@ -75,6 +85,8 @@ const (
 )
 
 // IRC commands :: RFC2812; section 3 :: RFC2813; section 4.
+//
+//goland:noinspection ALL
 const (
 	ADMIN    = "ADMIN"
 	AWAY     = "AWAY"
@@ -127,6 +139,8 @@ const (
 )
 
 // Numeric IRC reply mapping :: RFC2812; section 5.
+//
+//goland:noinspection ALL
 const (
 	RPL_WELCOME           = "001"
 	RPL_YOURHOST          = "002"
@@ -270,6 +284,8 @@ const (
 )
 
 // IRCv3 commands and extensions :: http://ircv3.net/irc/.
+//
+//goland:noinspection ALL
 const (
 	AUTHENTICATE = "AUTHENTICATE"
 	MONITOR      = "MONITOR"
@@ -293,6 +309,8 @@ const (
 )
 
 // Numeric IRC reply mapping for ircv3 :: http://ircv3.net/irc/.
+//
+//goland:noinspection ALL
 const (
 	RPL_LOGGEDIN     = "900"
 	RPL_LOGGEDOUT    = "901"
@@ -313,6 +331,8 @@ const (
 )
 
 // Numeric IRC event mapping :: RFC2812; section 5.3.
+//
+//goland:noinspection ALL
 const (
 	RPL_STATSCLINE    = "213"
 	RPL_STATSNLINE    = "214"
@@ -341,6 +361,8 @@ const (
 )
 
 // Misc.
+//
+//goland:noinspection ALL
 const (
 	ERR_TOOMANYMATCHES = "416" // IRCNet.
 	RPL_GLOBALUSERS    = "266" // aircd/hybrid/bahamut, used on freenode.
@@ -351,6 +373,8 @@ const (
 )
 
 // As seen in the wild.
+//
+//goland:noinspection ALL
 const (
 	RPL_WHOISAUTHNAME = "330"
 	RPL_WHOISTLS      = "671"
diff --git a/go.mod b/go.mod
index 771ea37..a88783c 100644
--- a/go.mod
+++ b/go.mod
@@ -3,14 +3,7 @@ module github.com/yunginnanet/girc-atomic
 go 1.19
 
 require (
+	git.tcp.direct/kayos/common v0.7.6
 	github.com/araddon/dateparse v0.0.0-20210429162001-6b43995a97de
 	github.com/orcaman/concurrent-map v1.0.0
 )
-
-require (
-	git.tcp.direct/kayos/common v0.7.6 // indirect
-	github.com/mattn/go-colorable v0.1.12 // indirect
-	github.com/mattn/go-isatty v0.0.14 // indirect
-	github.com/rs/zerolog v1.27.0 // indirect
-	golang.org/x/sys v0.0.0-20210927094055-39ccf1dd6fa6 // indirect
-)
diff --git a/go.sum b/go.sum
index af355d6..49e8760 100644
--- a/go.sum
+++ b/go.sum
@@ -2,31 +2,18 @@ git.tcp.direct/kayos/common v0.7.6 h1:RThBVa6xKF6ybRURBgzobEHsRi8nYoYp3Z1PE2qtKx
 git.tcp.direct/kayos/common v0.7.6/go.mod h1:jVbdX9prBrx9e3aTsNpu643brGVgpLvysl40/F5U2cE=
 github.com/araddon/dateparse v0.0.0-20210429162001-6b43995a97de h1:FxWPpzIjnTlhPwqqXc4/vE0f7GvRjuAsbW+HOIe8KnA=
 github.com/araddon/dateparse v0.0.0-20210429162001-6b43995a97de/go.mod h1:DCaWoUhZrYW9p1lxo/cm8EmUOOzAPSEZNGF2DK1dJgw=
-github.com/coreos/go-systemd/v22 v22.3.3-0.20220203105225-a9a7ef127534/go.mod h1:Y58oyj3AT4RCenI/lSvhwexgC+NSVTIJ3seZv2GcEnc=
 github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/godbus/dbus/v5 v5.0.4/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
-github.com/mattn/go-colorable v0.1.12 h1:jF+Du6AlPIjs2BiUiQlKOX0rt3SujHxPnksPKZbaA40=
-github.com/mattn/go-colorable v0.1.12/go.mod h1:u5H1YNBxpqRaxsYJYSkiCWKzEfiAb1Gb520KVy5xxl4=
-github.com/mattn/go-isatty v0.0.14 h1:yVuAays6BHfxijgZPzw+3Zlu5yQgKGP2/hcQbHb7S9Y=
-github.com/mattn/go-isatty v0.0.14/go.mod h1:7GGIvUiUoEMVVmxf/4nioHXj79iQHKdU27kJ6hsGG94=
 github.com/mattn/go-runewidth v0.0.10/go.mod h1:RAqKPSqVFrSLVXbA8x7dzmKdmGzieGRCM46jaSJTDAk=
 github.com/orcaman/concurrent-map v1.0.0 h1:I/2A2XPCb4IuQWcQhBhSwGfiuybl/J0ev9HDbW65HOY=
 github.com/orcaman/concurrent-map v1.0.0/go.mod h1:Lu3tH6HLW3feq74c2GC+jIMS/K2CFcDWnWD9XkenwhI=
-github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/rivo/uniseg v0.1.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
-github.com/rs/xid v1.3.0/go.mod h1:trrq9SKmegXys3aeAKXMUTdJsYXVwGY3RLcfgqegfbg=
-github.com/rs/zerolog v1.27.0 h1:1T7qCieN22GVc8S4Q2yuexzBb1EqjbgjSH9RohbMjKs=
-github.com/rs/zerolog v1.27.0/go.mod h1:7frBqO0oezxmnO7GF86FY++uy8I0Tk/If5ni1G9Qc0U=
 github.com/scylladb/termtables v0.0.0-20191203121021-c4c0b6d42ff4/go.mod h1:C1a7PQSMz9NShzorzCiG2fk9+xuCgLkPeCvMHYR2OWg=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
-golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.0.0-20210927094055-39ccf1dd6fa6 h1:foEbQz/B0Oz6YIqu/69kfXPYeFQAuuMYFkjaqXzl5Wo=
-golang.org/x/sys v0.0.0-20210927094055-39ccf1dd6fa6/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
diff --git a/handler.go b/handler.go
index 59cc8fa..dbe6a0a 100644
--- a/handler.go
+++ b/handler.go
@@ -552,6 +552,8 @@ func (e *HandlerError) String() string {
 // DefaultRecoverHandler can be used with Config.RecoverFunc as a default
 // catch-all for panics. This will log the error, and the call trace to the
 // debug log (see Config.Debug), or os.Stdout if Config.Debug is unset.
+//
+//goland:noinspection GoUnusedExportedFunction
 func DefaultRecoverHandler(client *Client, err *HandlerError) {
 	if client.Config.Debug == nil {
 		fmt.Println(err.Error())
diff --git a/util.go b/util.go
deleted file mode 100644
index 26056cc..0000000
--- a/util.go
+++ /dev/null
@@ -1,11 +0,0 @@
-package girc
-
-import (
-	"math/rand"
-	"time"
-)
-
-func randSleep() {
-	rand.Seed(time.Now().UnixNano())
-	time.Sleep(time.Duration(rand.Intn(25)) * time.Millisecond)
-}