diff --git a/.vscode/settings.json b/.vscode/settings.json
index c53d2df..43bc687 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -34,6 +34,7 @@
 		"pcfg",
 		"pflag",
 		"pflags",
+		"prealloc",
 		"SGFs",
 		"stretchr",
 		"stringifying",
diff --git a/go.mod b/go.mod
index 8c10311..35b61e1 100644
--- a/go.mod
+++ b/go.mod
@@ -10,7 +10,7 @@ require (
 	github.com/stretchr/testify v1.11.1
 	github.com/vektra/mockery/v2 v2.53.5
 	github.com/vishvananda/netlink v1.3.1
-	golang.org/x/crypto v0.46.0
+	golang.org/x/crypto v0.47.0
 	golang.org/x/sync v0.19.0
 	golang.zx2c4.com/wireguard v0.0.0-20250521234502-f333402bd9cb
 	golang.zx2c4.com/wireguard/wgctrl v0.0.0-20241231184526-a9ab2273dd10
@@ -48,13 +48,13 @@ require (
 	github.com/subosito/gotenv v1.6.0 // indirect
 	github.com/vishvananda/netns v0.0.5 // indirect
 	go.yaml.in/yaml/v3 v3.0.4 // indirect
-	golang.org/x/mod v0.30.0 // indirect
-	golang.org/x/net v0.47.0 // indirect
-	golang.org/x/sys v0.39.0 // indirect
-	golang.org/x/term v0.38.0 // indirect
-	golang.org/x/text v0.32.0 // indirect
+	golang.org/x/mod v0.31.0 // indirect
+	golang.org/x/net v0.48.0 // indirect
+	golang.org/x/sys v0.40.0 // indirect
+	golang.org/x/term v0.39.0 // indirect
+	golang.org/x/text v0.33.0 // indirect
 	golang.org/x/time v0.12.0 // indirect
-	golang.org/x/tools v0.39.0 // indirect
+	golang.org/x/tools v0.40.0 // indirect
 	golang.zx2c4.com/wintun v0.0.0-20230126152724-0fa3db229ce2 // indirect
 	gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
diff --git a/go.sum b/go.sum
index 152f017..a7f3f1f 100644
--- a/go.sum
+++ b/go.sum
@@ -97,12 +97,12 @@ github.com/vishvananda/netns v0.0.5 h1:DfiHV+j8bA32MFM7bfEunvT8IAqQ/NzSJHtcmW5zd
 github.com/vishvananda/netns v0.0.5/go.mod h1:SpkAiCQRtJ6TvvxPnOSyH3BMl6unz3xZlaprSwhNNJM=
 go.yaml.in/yaml/v3 v3.0.4 h1:tfq32ie2Jv2UxXFdLJdh3jXuOzWiL1fo0bu/FbuKpbc=
 go.yaml.in/yaml/v3 v3.0.4/go.mod h1:DhzuOOF2ATzADvBadXxruRBLzYTpT36CKvDb3+aBEFg=
-golang.org/x/crypto v0.46.0 h1:cKRW/pmt1pKAfetfu+RCEvjvZkA9RimPbh7bhFjGVBU=
-golang.org/x/crypto v0.46.0/go.mod h1:Evb/oLKmMraqjZ2iQTwDwvCtJkczlDuTmdJXoZVzqU0=
-golang.org/x/mod v0.30.0 h1:fDEXFVZ/fmCKProc/yAXXUijritrDzahmwwefnjoPFk=
-golang.org/x/mod v0.30.0/go.mod h1:lAsf5O2EvJeSFMiBxXDki7sCgAxEUcZHXoXMKT4GJKc=
-golang.org/x/net v0.47.0 h1:Mx+4dIFzqraBXUugkia1OOvlD6LemFo1ALMHjrXDOhY=
-golang.org/x/net v0.47.0/go.mod h1:/jNxtkgq5yWUGYkaZGqo27cfGZ1c5Nen03aYrrKpVRU=
+golang.org/x/crypto v0.47.0 h1:V6e3FRj+n4dbpw86FJ8Fv7XVOql7TEwpHapKoMJ/GO8=
+golang.org/x/crypto v0.47.0/go.mod h1:ff3Y9VzzKbwSSEzWqJsJVBnWmRwRSHt/6Op5n9bQc4A=
+golang.org/x/mod v0.31.0 h1:HaW9xtz0+kOcWKwli0ZXy79Ix+UW/vOfmWI5QVd2tgI=
+golang.org/x/mod v0.31.0/go.mod h1:43JraMp9cGx1Rx3AqioxrbrhNsLl2l/iNAvuBkrezpg=
+golang.org/x/net v0.48.0 h1:zyQRTTrjc33Lhh0fBgT/H3oZq9WuvRR5gPC70xpDiQU=
+golang.org/x/net v0.48.0/go.mod h1:+ndRgGjkh8FGtu1w1FGbEC31if4VrNVMuKTgcAAnQRY=
 golang.org/x/sync v0.19.0 h1:vV+1eWNmZ5geRlYjzm2adRgW2/mcpevXNg50YZtPCE4=
 golang.org/x/sync v0.19.0/go.mod h1:9KTHXmSnoGruLpwFjVSX0lNNA75CykiMECbovNTZqGI=
 golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
@@ -110,16 +110,16 @@ golang.org/x/sys v0.2.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.10.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.12.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.39.0 h1:CvCKL8MeisomCi6qNZ+wbb0DN9E5AATixKsvNtMoMFk=
-golang.org/x/sys v0.39.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
-golang.org/x/term v0.38.0 h1:PQ5pkm/rLO6HnxFR7N2lJHOZX6Kez5Y1gDSJla6jo7Q=
-golang.org/x/term v0.38.0/go.mod h1:bSEAKrOT1W+VSu9TSCMtoGEOUcKxOKgl3LE5QEF/xVg=
-golang.org/x/text v0.32.0 h1:ZD01bjUt1FQ9WJ0ClOL5vxgxOI/sVCNgX1YtKwcY0mU=
-golang.org/x/text v0.32.0/go.mod h1:o/rUWzghvpD5TXrTIBuJU77MTaN0ljMWE47kxGJQ7jY=
+golang.org/x/sys v0.40.0 h1:DBZZqJ2Rkml6QMQsZywtnjnnGvHza6BTfYFWY9kjEWQ=
+golang.org/x/sys v0.40.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
+golang.org/x/term v0.39.0 h1:RclSuaJf32jOqZz74CkPA9qFuVTX7vhLlpfj/IGWlqY=
+golang.org/x/term v0.39.0/go.mod h1:yxzUCTP/U+FzoxfdKmLaA0RV1WgE0VY7hXBwKtY/4ww=
+golang.org/x/text v0.33.0 h1:B3njUFyqtHDUI5jMn1YIr5B0IE2U0qck04r6d4KPAxE=
+golang.org/x/text v0.33.0/go.mod h1:LuMebE6+rBincTi9+xWTY8TztLzKHc/9C1uBCG27+q8=
 golang.org/x/time v0.12.0 h1:ScB/8o8olJvc+CQPWrK3fPZNfh7qgwCrY0zJmoEQLSE=
 golang.org/x/time v0.12.0/go.mod h1:CDIdPxbZBQxdj6cxyCIdrNogrJKMJ7pr37NYpMcMDSg=
-golang.org/x/tools v0.39.0 h1:ik4ho21kwuQln40uelmciQPp9SipgNDdrafrYA4TmQQ=
-golang.org/x/tools v0.39.0/go.mod h1:JnefbkDPyD8UU2kI5fuf8ZX4/yUeh9W877ZeBONxUqQ=
+golang.org/x/tools v0.40.0 h1:yLkxfA+Qnul4cs9QA3KnlFu0lVmd8JJfoq+E41uSutA=
+golang.org/x/tools v0.40.0/go.mod h1:Ik/tzLRlbscWpqqMRjyWYDisX8bG13FrdXp3o4Sr9lc=
 golang.zx2c4.com/wintun v0.0.0-20230126152724-0fa3db229ce2 h1:B82qJJgjvYKsXS9jeunTOisW56dUokqW/FOteYJJ/yg=
 golang.zx2c4.com/wintun v0.0.0-20230126152724-0fa3db229ce2/go.mod h1:deeaetjYA+DHMHg+sMSMI58GrEteJUUzzw7en6TJQcI=
 golang.zx2c4.com/wireguard v0.0.0-20250521234502-f333402bd9cb h1:whnFRlWMcXI9d+ZbWg+4sHnLp52d5yiIPUxMBSt4X9A=
diff --git a/go.work.sum b/go.work.sum
index 9cb1e2f..7f6eb76 100644
--- a/go.work.sum
+++ b/go.work.sum
@@ -93,17 +93,20 @@ golang.org/x/oauth2 v0.25.0 h1:CY4y7XT9v0cRI9oupztF8AgiIu99L/ksR/Xp/6jrZ70=
 golang.org/x/oauth2 v0.25.0/go.mod h1:XYTD2NtWslqkgxebSiOHnXEap4TF09sJSc7H1sXbhtI=
 golang.org/x/sync v0.7.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
 golang.org/x/sync v0.13.0/go.mod h1:1dzgHSNfp02xaA81J2MS99Qcpr2w7fw1gpm99rleRqA=
+golang.org/x/sync v0.18.0/go.mod h1:9KTHXmSnoGruLpwFjVSX0lNNA75CykiMECbovNTZqGI=
 golang.org/x/sys v0.13.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.20.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/sys v0.26.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/sys v0.29.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/sys v0.32.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
+golang.org/x/sys v0.38.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
 golang.org/x/telemetry v0.0.0-20240521205824-bda55230c457/go.mod h1:pRgIJT+bRLFKnoM1ldnzKoxTIn14Yxz928LQRYYgIN0=
 golang.org/x/telemetry v0.0.0-20250710130107-8d8967aff50b/go.mod h1:4ZwOYna0/zsOKwuR5X/m0QFOJpSZvAxFfkQT+Erd9D4=
 golang.org/x/telemetry v0.0.0-20250908211612-aef8a434d053 h1:dHQOQddU4YHS5gY33/6klKjq7Gp3WwMyOXGNp5nzRj8=
 golang.org/x/telemetry v0.0.0-20250908211612-aef8a434d053/go.mod h1:+nZKN+XVh4LCiA9DV3ywrzN4gumyCnKjau3NGb9SGoE=
 golang.org/x/telemetry v0.0.0-20251008203120-078029d740a8/go.mod h1:Pi4ztBfryZoJEkyFTI5/Ocsu2jXyDr6iSdgJiYE/uwE=
-golang.org/x/telemetry v0.0.0-20251111182119-bc8e575c7b54/go.mod h1:hKdjCMrbv9skySur+Nek8Hd0uJ0GuxJIoIX2payrIdQ=
+golang.org/x/telemetry v0.0.0-20251203150158-8fff8a5912fc h1:bH6xUXay0AIFMElXG2rQ4uiE+7ncwtiOdPfYK1NK2XA=
+golang.org/x/telemetry v0.0.0-20251203150158-8fff8a5912fc/go.mod h1:hKdjCMrbv9skySur+Nek8Hd0uJ0GuxJIoIX2payrIdQ=
 golang.org/x/tools v0.13.0/go.mod h1:HvlwmtVNQAhOuCjW7xxvovg8wbNq7LwfXh/k7wXUl58=
 golang.org/x/tools v0.21.1-0.20240508182429-e35e4ccd0d2d/go.mod h1:aiJjzUbINMkxbQROHiO6hDPo2LHcIPhhQsa9DLh0yGk=
 golang.org/x/tools v0.26.0/go.mod h1:TPVVj70c7JJ3WCazhD8OdXcZg/og+b9+tH/KxylGwH0=
diff --git a/magefiles/generate.go b/magefiles/generate.go
index 2b57261..aa923a6 100644
--- a/magefiles/generate.go
+++ b/magefiles/generate.go
@@ -12,6 +12,7 @@ import (
 var generatedSources = []string{
 	"internal/version.go",
 }
+
 var goGeneratedSources = []string{
 	"internal/mocks/WgClient.go",
 	"trust/mock_Evaluator_test.go",
@@ -19,7 +20,8 @@ var goGeneratedSources = []string{
 	"internal/networking/mocks/Interface.go",
 	"internal/networking/mocks/UDPConn.go",
 }
-var generated = append(append([]string{}, generatedSources...), goGeneratedSources...)
+
+// var generated = append(append([]string{}, generatedSources...), goGeneratedSources...)
 
 func Generate(ctx context.Context) error {
 	runs := make([]any, len(generators))
@@ -53,7 +55,7 @@ func buildVersion(ctx context.Context) error {
 		return err
 	}
 	out := bytes.ReplaceAll(in, []byte("__GIT_VERSION__"), []byte(v.pkgVerRel))
-	if err := safeOverwrite("internal/version.go", out, 0666); err != nil {
+	if err := safeOverwrite("internal/version.go", out, 0o666); err != nil {
 		return err
 	}
 	return nil
diff --git a/magefiles/go.mod b/magefiles/go.mod
index 96df500..80ae37d 100644
--- a/magefiles/go.mod
+++ b/magefiles/go.mod
@@ -13,13 +13,13 @@ require (
 	github.com/mattn/go-colorable v0.1.14 // indirect
 	github.com/mattn/go-isatty v0.0.20 // indirect
 	github.com/rogpeppe/go-internal v1.14.1 // indirect
-	golang.org/x/mod v0.30.0 // indirect
+	golang.org/x/mod v0.31.0 // indirect
 	golang.org/x/sync v0.19.0 // indirect
-	golang.org/x/sys v0.39.0 // indirect
-	golang.org/x/telemetry v0.0.0-20251111182119-bc8e575c7b54 // indirect
-	golang.org/x/term v0.38.0 // indirect
-	golang.org/x/text v0.32.0 // indirect
-	golang.org/x/tools v0.39.0 // indirect
+	golang.org/x/sys v0.40.0 // indirect
+	golang.org/x/telemetry v0.0.0-20251203150158-8fff8a5912fc // indirect
+	golang.org/x/term v0.39.0 // indirect
+	golang.org/x/text v0.33.0 // indirect
+	golang.org/x/tools v0.40.0 // indirect
 	golang.org/x/tools/go/packages/packagestest v0.1.1-deprecated // indirect
 	golang.org/x/vuln v1.1.4 // indirect
 	gotest.tools/gotestsum v1.12.2 // indirect
diff --git a/magefiles/go.sum b/magefiles/go.sum
index 206f6a2..598b873 100644
--- a/magefiles/go.sum
+++ b/magefiles/go.sum
@@ -22,21 +22,21 @@ github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWE
 github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
 github.com/rogpeppe/go-internal v1.14.1 h1:UQB4HGPB6osV0SQTLymcB4TgvyWu6ZyliaW0tI/otEQ=
 github.com/rogpeppe/go-internal v1.14.1/go.mod h1:MaRKkUm5W0goXpeCfT7UZI6fk/L7L7so1lCWt35ZSgc=
-golang.org/x/mod v0.30.0 h1:fDEXFVZ/fmCKProc/yAXXUijritrDzahmwwefnjoPFk=
-golang.org/x/mod v0.30.0/go.mod h1:lAsf5O2EvJeSFMiBxXDki7sCgAxEUcZHXoXMKT4GJKc=
+golang.org/x/mod v0.31.0 h1:HaW9xtz0+kOcWKwli0ZXy79Ix+UW/vOfmWI5QVd2tgI=
+golang.org/x/mod v0.31.0/go.mod h1:43JraMp9cGx1Rx3AqioxrbrhNsLl2l/iNAvuBkrezpg=
 golang.org/x/sync v0.19.0 h1:vV+1eWNmZ5geRlYjzm2adRgW2/mcpevXNg50YZtPCE4=
 golang.org/x/sync v0.19.0/go.mod h1:9KTHXmSnoGruLpwFjVSX0lNNA75CykiMECbovNTZqGI=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.39.0 h1:CvCKL8MeisomCi6qNZ+wbb0DN9E5AATixKsvNtMoMFk=
-golang.org/x/sys v0.39.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
-golang.org/x/telemetry v0.0.0-20251111182119-bc8e575c7b54 h1:E2/AqCUMZGgd73TQkxUMcMla25GB9i/5HOdLr+uH7Vo=
-golang.org/x/telemetry v0.0.0-20251111182119-bc8e575c7b54/go.mod h1:hKdjCMrbv9skySur+Nek8Hd0uJ0GuxJIoIX2payrIdQ=
-golang.org/x/term v0.38.0 h1:PQ5pkm/rLO6HnxFR7N2lJHOZX6Kez5Y1gDSJla6jo7Q=
-golang.org/x/term v0.38.0/go.mod h1:bSEAKrOT1W+VSu9TSCMtoGEOUcKxOKgl3LE5QEF/xVg=
-golang.org/x/text v0.32.0 h1:ZD01bjUt1FQ9WJ0ClOL5vxgxOI/sVCNgX1YtKwcY0mU=
-golang.org/x/text v0.32.0/go.mod h1:o/rUWzghvpD5TXrTIBuJU77MTaN0ljMWE47kxGJQ7jY=
-golang.org/x/tools v0.39.0 h1:ik4ho21kwuQln40uelmciQPp9SipgNDdrafrYA4TmQQ=
-golang.org/x/tools v0.39.0/go.mod h1:JnefbkDPyD8UU2kI5fuf8ZX4/yUeh9W877ZeBONxUqQ=
+golang.org/x/sys v0.40.0 h1:DBZZqJ2Rkml6QMQsZywtnjnnGvHza6BTfYFWY9kjEWQ=
+golang.org/x/sys v0.40.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
+golang.org/x/telemetry v0.0.0-20251203150158-8fff8a5912fc h1:bH6xUXay0AIFMElXG2rQ4uiE+7ncwtiOdPfYK1NK2XA=
+golang.org/x/telemetry v0.0.0-20251203150158-8fff8a5912fc/go.mod h1:hKdjCMrbv9skySur+Nek8Hd0uJ0GuxJIoIX2payrIdQ=
+golang.org/x/term v0.39.0 h1:RclSuaJf32jOqZz74CkPA9qFuVTX7vhLlpfj/IGWlqY=
+golang.org/x/term v0.39.0/go.mod h1:yxzUCTP/U+FzoxfdKmLaA0RV1WgE0VY7hXBwKtY/4ww=
+golang.org/x/text v0.33.0 h1:B3njUFyqtHDUI5jMn1YIr5B0IE2U0qck04r6d4KPAxE=
+golang.org/x/text v0.33.0/go.mod h1:LuMebE6+rBincTi9+xWTY8TztLzKHc/9C1uBCG27+q8=
+golang.org/x/tools v0.40.0 h1:yLkxfA+Qnul4cs9QA3KnlFu0lVmd8JJfoq+E41uSutA=
+golang.org/x/tools v0.40.0/go.mod h1:Ik/tzLRlbscWpqqMRjyWYDisX8bG13FrdXp3o4Sr9lc=
 golang.org/x/tools/go/expect v0.1.0-deprecated h1:jY2C5HGYR5lqex3gEniOQL0r7Dq5+VGVgY1nudX5lXY=
 golang.org/x/tools/go/expect v0.1.0-deprecated/go.mod h1:eihoPOH+FgIqa3FpoTwguz/bVUSGBlGQU67vpBeOrBY=
 golang.org/x/tools/go/packages/packagestest v0.1.1-deprecated h1:1h2MnaIAIXISqTFKdENegdpAgUXz6NrPEsbIeWaBRvM=
diff --git a/magefiles/install.go b/magefiles/install.go
index 7459f7f..42cd409 100644
--- a/magefiles/install.go
+++ b/magefiles/install.go
@@ -26,7 +26,7 @@ func SysInstallCross(ctx context.Context, arch string) error {
 	return sysinstall(ctx, "wirelink-cross-"+arch)
 }
 
-func sysinstall(ctx context.Context, src string) error {
+func sysinstall(_ context.Context, src string) error {
 	if err := sh.RunV("install", src, PREFIX+"/bin/wirelink"); err != nil {
 		return err
 	}
@@ -64,7 +64,7 @@ func (Checkinstall) Prep(ctx context.Context, arch string) error {
 	if err := sh.RunV("go", "mod", "tidy"); err != nil {
 		return err
 	}
-	if err := os.MkdirAll("packaging/wirelink-checkinstall/doc-pak", 0777); err != nil {
+	if err := os.MkdirAll("packaging/wirelink-checkinstall/doc-pak", 0o777); err != nil {
 		return err
 	}
 	args := []string{"-m", "644"}
diff --git a/magefiles/versions.go b/magefiles/versions.go
index b5b884c..2be358d 100644
--- a/magefiles/versions.go
+++ b/magefiles/versions.go
@@ -15,7 +15,7 @@ type versions struct {
 	pkgRel    string
 }
 
-func getVersions(ctx context.Context) (versions, error) {
+func getVersions(_ context.Context) (versions, error) {
 	out, err := sh.Output("git", "describe", "--long", "--dirty=+")
 	if err != nil {
 		return versions{}, err
diff --git a/server/udp-inbound_test.go b/server/udp-inbound_test.go
index 89e3a2d..67b197b 100644
--- a/server/udp-inbound_test.go
+++ b/server/udp-inbound_test.go
@@ -1,6 +1,7 @@
 package server
 
 import (
+	"bytes"
 	"fmt"
 	"math/rand"
 	"net"
@@ -44,16 +45,16 @@ func TestLinkServer_parsePacket(t *testing.T) {
 	receiveErr := fmt.Errorf("fake packet error")
 
 	wrapAndSign := func(facts ...*fact.Fact) []byte {
-		buffer := make([]byte, 0)
+		var buf bytes.Buffer
 		for _, f := range facts {
-			buffer = append(buffer, util.MustBytes(f.MarshalBinaryNow(now))...)
+			buf.Write(util.MustBytes(f.MarshalBinaryNow(now))) // never fails
 		}
-		nonce, tag, err := remoteSigner.SignFor(buffer, &localPublicKey)
+		nonce, tag, err := remoteSigner.SignFor(buf.Bytes(), &localPublicKey)
 		require.NoError(t, err)
 		sgf := &fact.Fact{
 			Attribute: fact.AttributeSignedGroup,
 			Subject:   &fact.PeerSubject{Key: remotePublicKey},
-			Value:     &fact.SignedGroupValue{Nonce: nonce, Tag: tag, InnerBytes: buffer},
+			Value:     &fact.SignedGroupValue{Nonce: nonce, Tag: tag, InnerBytes: buf.Bytes()},
 			Expires:   expires,
 		}
 		return util.MustBytes(sgf.MarshalBinary())
@@ -158,11 +159,11 @@ func TestLinkServer_processSignedGroup(t *testing.T) {
 		})
 	}
 	svgFromFacts := func(facts ...*fact.Fact) *fact.SignedGroupValue {
-		data := make([]byte, 0)
+		var buf bytes.Buffer
 		for _, f := range facts {
-			data = append(data, util.MustBytes(f.MarshalBinaryNow(now))...)
+			buf.Write(util.MustBytes(f.MarshalBinaryNow(now))) // never fails
 		}
-		return sgvFromBytes(data)
+		return sgvFromBytes(buf.Bytes())
 	}
 	rf := func(f *fact.Fact) *ReceivedFact {
 		return &ReceivedFact{
diff --git a/trust/trust_test.go b/trust/trust_test.go
index 0f0d304..1bd227b 100644
--- a/trust/trust_test.go
+++ b/trust/trust_test.go
@@ -64,9 +64,8 @@ func TestShouldAccept(t *testing.T) {
 	}
 	allLevels := []Level{Untrusted, Endpoint, AllowedIPs, Membership, DelegateTrust}
 
-	tests := []test{
-		{"nil trust", args{fact.AttributeAlive, true, nil}, false},
-	}
+	tests := make([]test, 0, 10*max(len(validAttrs), len(invalidAttrs))*4) // estimate to shut up linter
+	tests = append(tests, test{"nil trust", args{fact.AttributeAlive, true, nil}, false})
 	tests = append(tests, matrix("gigo", invalidAttrs, false, allLevels, false)...)
 	tests = append(tests, matrix("gigo", invalidAttrs, true, allLevels, false)...)
 	tests = append(tests, matrix("new peer", validAttrs, false, []Level{Untrusted, Endpoint, AllowedIPs}, false)...)