diff --git a/backend/alias/alias.go b/backend/alias/alias.go
index 33ba5d664..92dda17bf 100644
--- a/backend/alias/alias.go
+++ b/backend/alias/alias.go
@@ -1,3 +1,4 @@
+// Package alias implements a virtual provider to rename existing remotes.
 package alias
 
 import (
diff --git a/backend/all/all.go b/backend/all/all.go
index dc17911e4..5dae4d37d 100644
--- a/backend/all/all.go
+++ b/backend/all/all.go
@@ -1,3 +1,4 @@
+// Package all imports all the backends
 package all
 
 import (
diff --git a/backend/azureblob/azureblob.go b/backend/azureblob/azureblob.go
index edb863070..0db359222 100644
--- a/backend/azureblob/azureblob.go
+++ b/backend/azureblob/azureblob.go
@@ -1,8 +1,7 @@
-// Package azureblob provides an interface to the Microsoft Azure blob object storage system
-
 //go:build !plan9 && !solaris && !js
 // +build !plan9,!solaris,!js
 
+// Package azureblob provides an interface to the Microsoft Azure blob object storage system
 package azureblob
 
 import (
diff --git a/backend/b2/api/types.go b/backend/b2/api/types.go
index e139dc8c1..5089db242 100644
--- a/backend/b2/api/types.go
+++ b/backend/b2/api/types.go
@@ -1,3 +1,4 @@
+// Package api provides types used by the Backblaze B2 API.
 package api
 
 import (
diff --git a/backend/b2/b2.go b/backend/b2/b2.go
index 6fd77b6a0..52794d802 100644
--- a/backend/b2/b2.go
+++ b/backend/b2/b2.go
@@ -1,4 +1,4 @@
-// Package b2 provides an interface to the Backblaze B2 object storage system
+// Package b2 provides an interface to the Backblaze B2 object storage system.
 package b2
 
 // FIXME should we remove sha1 checks from here as rclone now supports
diff --git a/backend/cache/cache.go b/backend/cache/cache.go
index 1c75aea4a..5c4e5dc87 100644
--- a/backend/cache/cache.go
+++ b/backend/cache/cache.go
@@ -1,6 +1,7 @@
 //go:build !plan9 && !js
 // +build !plan9,!js
 
+// Package cache implements a virtual provider to cache existing remotes.
 package cache
 
 import (
diff --git a/backend/fichier/fichier.go b/backend/fichier/fichier.go
index 454e391ff..e6c053051 100644
--- a/backend/fichier/fichier.go
+++ b/backend/fichier/fichier.go
@@ -1,3 +1,4 @@
+// Package fichier provides an interface to the 1Fichier storage system.
 package fichier
 
 import (
diff --git a/backend/googlephotos/api/types.go b/backend/googlephotos/api/types.go
index d26cfc714..9b7aa79f6 100644
--- a/backend/googlephotos/api/types.go
+++ b/backend/googlephotos/api/types.go
@@ -1,3 +1,4 @@
+// Package api provides types used by the Google Photos API.
 package api
 
 import (
diff --git a/backend/hdfs/hdfs.go b/backend/hdfs/hdfs.go
index 234344ece..c07c0d7e2 100644
--- a/backend/hdfs/hdfs.go
+++ b/backend/hdfs/hdfs.go
@@ -1,6 +1,7 @@
 //go:build !plan9
 // +build !plan9
 
+// Package hdfs provides an interface to the HDFS storage system.
 package hdfs
 
 import (
diff --git a/backend/hidrive/hidrivehash/internal/internal.go b/backend/hidrive/hidrivehash/internal/internal.go
index f1596a9e6..261233c0d 100644
--- a/backend/hidrive/hidrivehash/internal/internal.go
+++ b/backend/hidrive/hidrivehash/internal/internal.go
@@ -1,3 +1,4 @@
+// Package internal provides utilities for HiDrive.
 package internal
 
 import (
diff --git a/backend/jottacloud/api/types.go b/backend/jottacloud/api/types.go
index 91e0c3095..8daf0f7ad 100644
--- a/backend/jottacloud/api/types.go
+++ b/backend/jottacloud/api/types.go
@@ -1,3 +1,4 @@
+// Package api provides types used by the Jottacloud API.
 package api
 
 import (
diff --git a/backend/jottacloud/jottacloud.go b/backend/jottacloud/jottacloud.go
index 0044c7f79..001787451 100644
--- a/backend/jottacloud/jottacloud.go
+++ b/backend/jottacloud/jottacloud.go
@@ -1,3 +1,4 @@
+// Package jottacloud provides an interface to the Jottacloud storage system.
 package jottacloud
 
 import (
diff --git a/backend/koofr/koofr.go b/backend/koofr/koofr.go
index f893b898b..642ab79fe 100644
--- a/backend/koofr/koofr.go
+++ b/backend/koofr/koofr.go
@@ -1,3 +1,4 @@
+// Package koofr provides an interface to the Koofr storage system.
 package koofr
 
 import (
diff --git a/backend/mailru/api/m1.go b/backend/mailru/api/m1.go
index 039b1e104..c9d3e9c9f 100644
--- a/backend/mailru/api/m1.go
+++ b/backend/mailru/api/m1.go
@@ -1,3 +1,4 @@
+// Package api provides types used by the Mail.ru API.
 package api
 
 import (
diff --git a/backend/mailru/mailru.go b/backend/mailru/mailru.go
index bd527e8e2..95507996c 100644
--- a/backend/mailru/mailru.go
+++ b/backend/mailru/mailru.go
@@ -1,3 +1,4 @@
+// Package mailru provides an interface to the Mail.ru Cloud storage system.
 package mailru
 
 import (
diff --git a/backend/onedrive/api/types.go b/backend/onedrive/api/types.go
index 12dca863b..bfde10161 100644
--- a/backend/onedrive/api/types.go
+++ b/backend/onedrive/api/types.go
@@ -1,5 +1,4 @@
-// Types passed and returned to and from the API
-
+// Package api provides types used by the OneDrive API.
 package api
 
 import (
diff --git a/backend/opendrive/opendrive.go b/backend/opendrive/opendrive.go
index 35e1871c3..037372e13 100644
--- a/backend/opendrive/opendrive.go
+++ b/backend/opendrive/opendrive.go
@@ -1,3 +1,4 @@
+// Package opendrive provides an interface to the OpenDrive storage system.
 package opendrive
 
 import (
diff --git a/backend/putio/putio.go b/backend/putio/putio.go
index 766a99b77..692364166 100644
--- a/backend/putio/putio.go
+++ b/backend/putio/putio.go
@@ -1,3 +1,4 @@
+// Package putio provides an interface to the put.io storage system.
 package putio
 
 import (
diff --git a/backend/qingstor/qingstor.go b/backend/qingstor/qingstor.go
index cd4880358..a3d0bd639 100644
--- a/backend/qingstor/qingstor.go
+++ b/backend/qingstor/qingstor.go
@@ -1,9 +1,8 @@
-// Package qingstor provides an interface to QingStor object storage
-// Home: https://www.qingcloud.com/
-
 //go:build !plan9 && !js
 // +build !plan9,!js
 
+// Package qingstor provides an interface to QingStor object storage
+// Home: https://www.qingcloud.com/
 package qingstor
 
 import (
diff --git a/backend/seafile/api/types.go b/backend/seafile/api/types.go
index 9fb95c0cf..d6224709f 100644
--- a/backend/seafile/api/types.go
+++ b/backend/seafile/api/types.go
@@ -1,3 +1,4 @@
+// Package api provides types used by the Seafile API.
 package api
 
 // Some api objects are duplicated with only small differences,
diff --git a/backend/seafile/seafile.go b/backend/seafile/seafile.go
index 00457676c..1413544ee 100644
--- a/backend/seafile/seafile.go
+++ b/backend/seafile/seafile.go
@@ -1,3 +1,4 @@
+// Package seafile provides an interface to the Seafile storage system.
 package seafile
 
 import (
diff --git a/backend/sftp/sftp.go b/backend/sftp/sftp.go
index 6a4259542..1c160996c 100644
--- a/backend/sftp/sftp.go
+++ b/backend/sftp/sftp.go
@@ -1,8 +1,7 @@
-// Package sftp provides a filesystem interface using github.com/pkg/sftp
-
 //go:build !plan9
 // +build !plan9
 
+// Package sftp provides a filesystem interface using github.com/pkg/sftp
 package sftp
 
 import (
diff --git a/backend/sia/api/types.go b/backend/sia/api/types.go
index ebec8961e..eb046ab22 100644
--- a/backend/sia/api/types.go
+++ b/backend/sia/api/types.go
@@ -1,3 +1,4 @@
+// Package api provides types used by the Sia API.
 package api
 
 import (
diff --git a/backend/sia/sia.go b/backend/sia/sia.go
index 2a8235638..b86faae61 100644
--- a/backend/sia/sia.go
+++ b/backend/sia/sia.go
@@ -1,3 +1,4 @@
+// Package sia provides an interface to the Sia storage system.
 package sia
 
 import (
diff --git a/backend/union/policy/all.go b/backend/union/policy/all.go
index 1de36da2a..fe43654ff 100644
--- a/backend/union/policy/all.go
+++ b/backend/union/policy/all.go
@@ -1,3 +1,4 @@
+// Package policy provides utilities for the union implementation.
 package policy
 
 import (
diff --git a/backend/union/union.go b/backend/union/union.go
index 8bcbf66c9..7e10f06b8 100644
--- a/backend/union/union.go
+++ b/backend/union/union.go
@@ -1,3 +1,4 @@
+// Package union implements a virtual provider to join existing remotes.
 package union
 
 import (
diff --git a/backend/union/upstream/upstream.go b/backend/union/upstream/upstream.go
index 7b9f44fd2..119eb7bb0 100644
--- a/backend/union/upstream/upstream.go
+++ b/backend/union/upstream/upstream.go
@@ -1,3 +1,4 @@
+// Package upstream provides utility functionality to union.
 package upstream
 
 import (
diff --git a/backend/uptobox/api/types.go b/backend/uptobox/api/types.go
index 872a5cff0..4e842c8ab 100644
--- a/backend/uptobox/api/types.go
+++ b/backend/uptobox/api/types.go
@@ -1,3 +1,4 @@
+// Package api provides types used by the Uptobox API.
 package api
 
 import "fmt"
diff --git a/backend/uptobox/uptobox.go b/backend/uptobox/uptobox.go
index 6bc5bd823..fb3bbd7db 100644
--- a/backend/uptobox/uptobox.go
+++ b/backend/uptobox/uptobox.go
@@ -1,3 +1,4 @@
+// Package uptobox provides an interface to the Uptobox storage system.
 package uptobox
 
 import (
diff --git a/backend/yandex/api/types.go b/backend/yandex/api/types.go
index 78d4c6850..614ced7d3 100644
--- a/backend/yandex/api/types.go
+++ b/backend/yandex/api/types.go
@@ -1,3 +1,4 @@
+// Package api provides types used by the Yandex API.
 package api
 
 import (
diff --git a/backend/yandex/yandex.go b/backend/yandex/yandex.go
index 3d5bf53cc..a643a7771 100644
--- a/backend/yandex/yandex.go
+++ b/backend/yandex/yandex.go
@@ -1,3 +1,4 @@
+// Package yandex provides an interface to the Yandex storage system.
 package yandex
 
 import (
diff --git a/backend/zoho/api/types.go b/backend/zoho/api/types.go
index 43d8644ce..755c57b9b 100644
--- a/backend/zoho/api/types.go
+++ b/backend/zoho/api/types.go
@@ -1,3 +1,4 @@
+// Package api provides types used by the Zoho API.
 package api
 
 import (
diff --git a/cmd/about/about.go b/cmd/about/about.go
index 46c1d6f66..967744b59 100644
--- a/cmd/about/about.go
+++ b/cmd/about/about.go
@@ -1,3 +1,4 @@
+// Package about provides the about command.
 package about
 
 import (
diff --git a/cmd/authorize/authorize.go b/cmd/authorize/authorize.go
index d3114c750..87dda815b 100644
--- a/cmd/authorize/authorize.go
+++ b/cmd/authorize/authorize.go
@@ -1,3 +1,4 @@
+// Package authorize provides the authorize command.
 package authorize
 
 import (
diff --git a/cmd/backend/backend.go b/cmd/backend/backend.go
index 85b7e44bd..3199f8a5d 100644
--- a/cmd/backend/backend.go
+++ b/cmd/backend/backend.go
@@ -1,3 +1,4 @@
+// Package backend provides the backend command.
 package backend
 
 import (
diff --git a/cmd/cachestats/cachestats.go b/cmd/cachestats/cachestats.go
index 16a1398d3..7638db8f4 100644
--- a/cmd/cachestats/cachestats.go
+++ b/cmd/cachestats/cachestats.go
@@ -1,6 +1,7 @@
 //go:build !plan9 && !js
 // +build !plan9,!js
 
+// Package cachestats provides the cachestats command.
 package cachestats
 
 import (
diff --git a/cmd/cat/cat.go b/cmd/cat/cat.go
index 4f90f0478..227ddb1f3 100644
--- a/cmd/cat/cat.go
+++ b/cmd/cat/cat.go
@@ -1,3 +1,4 @@
+// Package cat provides the cat command.
 package cat
 
 import (
diff --git a/cmd/check/check.go b/cmd/check/check.go
index 886c36a58..3c126e176 100644
--- a/cmd/check/check.go
+++ b/cmd/check/check.go
@@ -1,3 +1,4 @@
+// Package check provides the check command.
 package check
 
 import (
diff --git a/cmd/checksum/checksum.go b/cmd/checksum/checksum.go
index 1083e3800..c25aa143d 100644
--- a/cmd/checksum/checksum.go
+++ b/cmd/checksum/checksum.go
@@ -1,3 +1,4 @@
+// Package checksum provides the checksum command.
 package checksum
 
 import (
diff --git a/cmd/cleanup/cleanup.go b/cmd/cleanup/cleanup.go
index 549e3b420..e54577466 100644
--- a/cmd/cleanup/cleanup.go
+++ b/cmd/cleanup/cleanup.go
@@ -1,3 +1,4 @@
+// Package cleanup provides the cleanup command.
 package cleanup
 
 import (
diff --git a/cmd/cmount/mount.go b/cmd/cmount/mount.go
index 873adcaf0..c9893f2f7 100644
--- a/cmd/cmount/mount.go
+++ b/cmd/cmount/mount.go
@@ -1,11 +1,10 @@
-// Package cmount implements a FUSE mounting system for rclone remotes.
-//
-// This uses the cgo based cgofuse library
-
 //go:build cmount && ((linux && cgo) || (darwin && cgo) || (freebsd && cgo) || windows)
 // +build cmount
 // +build linux,cgo darwin,cgo freebsd,cgo windows
 
+// Package cmount implements a FUSE mounting system for rclone remotes.
+//
+// This uses the cgo based cgofuse library
 package cmount
 
 import (
diff --git a/cmd/cmount/mount_brew.go b/cmd/cmount/mount_brew.go
index ec1b97881..964c0b234 100644
--- a/cmd/cmount/mount_brew.go
+++ b/cmd/cmount/mount_brew.go
@@ -1,9 +1,10 @@
-// Build for macos with the brew tag to handle the absence
-// of fuse and print an appropriate error message
-
 //go:build brew && darwin
 // +build brew,darwin
 
+// Package cmount implements a FUSE mounting system for rclone remotes.
+//
+// Build for macos with the brew tag to handle the absence
+// of fuse and print an appropriate error message
 package cmount
 
 import (
diff --git a/cmd/cmount/mount_test.go b/cmd/cmount/mount_test.go
index 542c35b1b..7c9c852f6 100644
--- a/cmd/cmount/mount_test.go
+++ b/cmd/cmount/mount_test.go
@@ -3,6 +3,8 @@
 // +build linux,cgo darwin,cgo freebsd,cgo windows
 // +build !race !windows
 
+// Package cmount implements a FUSE mounting system for rclone remotes.
+//
 // FIXME this doesn't work with the race detector under Windows either
 // hanging or producing lots of differences.
 
diff --git a/cmd/cmount/mount_unsupported.go b/cmd/cmount/mount_unsupported.go
index 3b6761beb..375cec456 100644
--- a/cmd/cmount/mount_unsupported.go
+++ b/cmd/cmount/mount_unsupported.go
@@ -1,10 +1,11 @@
-// Build for cmount for unsupported platforms to stop go complaining
-// about "no buildable Go source files "
-
 //go:build !((linux && cgo && cmount) || (darwin && cgo && cmount) || (freebsd && cgo && cmount) || (windows && cmount))
 // +build !linux !cgo !cmount
 // +build !darwin !cgo !cmount
 // +build !freebsd !cgo !cmount
 // +build !windows !cmount
 
+// Package cmount implements a FUSE mounting system for rclone remotes.
+//
+// Build for cmount for unsupported platforms to stop go complaining
+// about "no buildable Go source files".
 package cmount
diff --git a/cmd/config/config.go b/cmd/config/config.go
index ed5700327..318685c7d 100644
--- a/cmd/config/config.go
+++ b/cmd/config/config.go
@@ -1,3 +1,4 @@
+// Package config provides the config command.
 package config
 
 import (
diff --git a/cmd/copy/copy.go b/cmd/copy/copy.go
index 33175e1f7..c6e42a70e 100644
--- a/cmd/copy/copy.go
+++ b/cmd/copy/copy.go
@@ -1,3 +1,4 @@
+// Package copy provides the copy command.
 package copy
 
 import (
diff --git a/cmd/copyto/copyto.go b/cmd/copyto/copyto.go
index 02d2af21e..85b54fa60 100644
--- a/cmd/copyto/copyto.go
+++ b/cmd/copyto/copyto.go
@@ -1,3 +1,4 @@
+// Package copyto provides the copyto command.
 package copyto
 
 import (
diff --git a/cmd/copyurl/copyurl.go b/cmd/copyurl/copyurl.go
index fc3cf38cc..a3c079b11 100644
--- a/cmd/copyurl/copyurl.go
+++ b/cmd/copyurl/copyurl.go
@@ -1,3 +1,4 @@
+// Package copyurl provides the copyurl command.
 package copyurl
 
 import (
diff --git a/cmd/cryptcheck/cryptcheck.go b/cmd/cryptcheck/cryptcheck.go
index ec0597da7..aab50ef06 100644
--- a/cmd/cryptcheck/cryptcheck.go
+++ b/cmd/cryptcheck/cryptcheck.go
@@ -1,3 +1,4 @@
+// Package cryptcheck provides the cryptcheck command.
 package cryptcheck
 
 import (
diff --git a/cmd/cryptdecode/cryptdecode.go b/cmd/cryptdecode/cryptdecode.go
index d36c70ca4..9c6178e9e 100644
--- a/cmd/cryptdecode/cryptdecode.go
+++ b/cmd/cryptdecode/cryptdecode.go
@@ -1,3 +1,4 @@
+// Package cryptdecode provides the cryptdecode command.
 package cryptdecode
 
 import (
diff --git a/cmd/dedupe/dedupe.go b/cmd/dedupe/dedupe.go
index b43c4c279..94a136ca2 100644
--- a/cmd/dedupe/dedupe.go
+++ b/cmd/dedupe/dedupe.go
@@ -1,3 +1,4 @@
+// Package dedupe provides the dedupe command.
 package dedupe
 
 import (
diff --git a/cmd/delete/delete.go b/cmd/delete/delete.go
index a432dbe56..047c320af 100644
--- a/cmd/delete/delete.go
+++ b/cmd/delete/delete.go
@@ -1,3 +1,4 @@
+// Package delete provides the delete command.
 package delete
 
 import (
diff --git a/cmd/deletefile/deletefile.go b/cmd/deletefile/deletefile.go
index 88750c75e..9d222771d 100644
--- a/cmd/deletefile/deletefile.go
+++ b/cmd/deletefile/deletefile.go
@@ -1,3 +1,4 @@
+// Package deletefile provides the deletefile command.
 package deletefile
 
 import (
diff --git a/cmd/genautocomplete/genautocomplete.go b/cmd/genautocomplete/genautocomplete.go
index 597113577..9502bbbc9 100644
--- a/cmd/genautocomplete/genautocomplete.go
+++ b/cmd/genautocomplete/genautocomplete.go
@@ -1,3 +1,4 @@
+// Package genautocomplete provides the genautocomplete command.
 package genautocomplete
 
 import (
diff --git a/cmd/gendocs/gendocs.go b/cmd/gendocs/gendocs.go
index 7a7ef3f46..e80b8a924 100644
--- a/cmd/gendocs/gendocs.go
+++ b/cmd/gendocs/gendocs.go
@@ -1,3 +1,4 @@
+// Package gendocs provides the gendocs command.
 package gendocs
 
 import (
diff --git a/cmd/hashsum/hashsum.go b/cmd/hashsum/hashsum.go
index 64dfde4ce..5655fdcf2 100644
--- a/cmd/hashsum/hashsum.go
+++ b/cmd/hashsum/hashsum.go
@@ -1,3 +1,4 @@
+// Package hashsum provides the hashsum command.
 package hashsum
 
 import (
diff --git a/cmd/link/link.go b/cmd/link/link.go
index 3367178c5..a0356cd33 100644
--- a/cmd/link/link.go
+++ b/cmd/link/link.go
@@ -1,3 +1,4 @@
+// Package link provides the link command.
 package link
 
 import (
diff --git a/cmd/listremotes/listremotes.go b/cmd/listremotes/listremotes.go
index 908979a4f..bf7b697f2 100644
--- a/cmd/listremotes/listremotes.go
+++ b/cmd/listremotes/listremotes.go
@@ -1,3 +1,4 @@
+// Package ls provides the ls command.
 package ls
 
 import (
diff --git a/cmd/ls/ls.go b/cmd/ls/ls.go
index e08a2c21d..334b12f8e 100644
--- a/cmd/ls/ls.go
+++ b/cmd/ls/ls.go
@@ -1,3 +1,4 @@
+// Package ls provides the ls command.
 package ls
 
 import (
diff --git a/cmd/ls/lshelp/lshelp.go b/cmd/ls/lshelp/lshelp.go
index f4a678be2..897c22f1c 100644
--- a/cmd/ls/lshelp/lshelp.go
+++ b/cmd/ls/lshelp/lshelp.go
@@ -1,3 +1,4 @@
+// Package lshelp provides common help for list commands.
 package lshelp
 
 import (
diff --git a/cmd/lsd/lsd.go b/cmd/lsd/lsd.go
index bd723daad..8d79266fb 100644
--- a/cmd/lsd/lsd.go
+++ b/cmd/lsd/lsd.go
@@ -1,3 +1,4 @@
+// Package lsd provides the lsd command.
 package lsd
 
 import (
diff --git a/cmd/lsf/lsf.go b/cmd/lsf/lsf.go
index e370f930c..2651e90e7 100644
--- a/cmd/lsf/lsf.go
+++ b/cmd/lsf/lsf.go
@@ -1,3 +1,4 @@
+// Package lsf provides the lsf command.
 package lsf
 
 import (
diff --git a/cmd/lsjson/lsjson.go b/cmd/lsjson/lsjson.go
index 8e4e343da..eb30f8578 100644
--- a/cmd/lsjson/lsjson.go
+++ b/cmd/lsjson/lsjson.go
@@ -1,3 +1,4 @@
+// Package lsjson provides the lsjson command.
 package lsjson
 
 import (
diff --git a/cmd/lsl/lsl.go b/cmd/lsl/lsl.go
index f2f40f7a7..f8108c5f7 100644
--- a/cmd/lsl/lsl.go
+++ b/cmd/lsl/lsl.go
@@ -1,3 +1,4 @@
+// Package lsl provides the lsl command.
 package lsl
 
 import (
diff --git a/cmd/md5sum/md5sum.go b/cmd/md5sum/md5sum.go
index 665ae4467..09da8526f 100644
--- a/cmd/md5sum/md5sum.go
+++ b/cmd/md5sum/md5sum.go
@@ -1,3 +1,4 @@
+// Package md5sum provides the md5sum command.
 package md5sum
 
 import (
diff --git a/cmd/mkdir/mkdir.go b/cmd/mkdir/mkdir.go
index 33fa33667..3c99180fe 100644
--- a/cmd/mkdir/mkdir.go
+++ b/cmd/mkdir/mkdir.go
@@ -1,3 +1,4 @@
+// Package mkdir provides the mkdir command.
 package mkdir
 
 import (
diff --git a/cmd/mount/mount.go b/cmd/mount/mount.go
index db0f23bd3..765419df4 100644
--- a/cmd/mount/mount.go
+++ b/cmd/mount/mount.go
@@ -1,8 +1,7 @@
-// Package mount implements a FUSE mounting system for rclone remotes.
-
 //go:build linux || freebsd
 // +build linux freebsd
 
+// Package mount implements a FUSE mounting system for rclone remotes.
 package mount
 
 import (
diff --git a/cmd/mount/mount_unsupported.go b/cmd/mount/mount_unsupported.go
index cc5ccb628..84f8656dc 100644
--- a/cmd/mount/mount_unsupported.go
+++ b/cmd/mount/mount_unsupported.go
@@ -1,9 +1,10 @@
-// Build for mount for unsupported platforms to stop go complaining
-// about "no buildable Go source files "
-
-// Invert the build constraint: linux freebsd
-
 //go:build !linux && !freebsd
 // +build !linux,!freebsd
 
+// Package mount implements a FUSE mounting system for rclone remotes.
+//
+// Build for mount for unsupported platforms to stop go complaining
+// about "no buildable Go source files".
+//
+// Invert the build constraint: linux freebsd
 package mount
diff --git a/cmd/mount2/mount.go b/cmd/mount2/mount.go
index d33f44533..cbb890500 100644
--- a/cmd/mount2/mount.go
+++ b/cmd/mount2/mount.go
@@ -1,8 +1,7 @@
-// Package mount implements a FUSE mounting system for rclone remotes.
-
 //go:build linux || (darwin && amd64)
 // +build linux darwin,amd64
 
+// Package mount2 implements a FUSE mounting system for rclone remotes.
 package mount2
 
 import (
diff --git a/cmd/mount2/mount_unsupported.go b/cmd/mount2/mount_unsupported.go
index 975a25b3e..649eab0a2 100644
--- a/cmd/mount2/mount_unsupported.go
+++ b/cmd/mount2/mount_unsupported.go
@@ -1,8 +1,9 @@
-// Build for mount for unsupported platforms to stop go complaining
-// about "no buildable Go source files "
-
 //go:build !linux && (!darwin || !amd64)
 // +build !linux
 // +build !darwin !amd64
 
+// Package mount2 implements a FUSE mounting system for rclone remotes.
+//
+// Build for mount for unsupported platforms to stop go complaining
+// about "no buildable Go source files".
 package mount2
diff --git a/cmd/mountlib/mount.go b/cmd/mountlib/mount.go
index b0119dc12..ba3773e5c 100644
--- a/cmd/mountlib/mount.go
+++ b/cmd/mountlib/mount.go
@@ -1,3 +1,4 @@
+// Package mountlib provides the mount command.
 package mountlib
 
 import (
diff --git a/cmd/move/move.go b/cmd/move/move.go
index 3d7f87167..65c8adc23 100644
--- a/cmd/move/move.go
+++ b/cmd/move/move.go
@@ -1,3 +1,4 @@
+// Package move provides the move command.
 package move
 
 import (
diff --git a/cmd/moveto/moveto.go b/cmd/moveto/moveto.go
index 8d81bb3d3..698d7ee18 100644
--- a/cmd/moveto/moveto.go
+++ b/cmd/moveto/moveto.go
@@ -1,3 +1,4 @@
+// Package moveto provides the moveto command.
 package moveto
 
 import (
diff --git a/cmd/ncdu/ncdu.go b/cmd/ncdu/ncdu.go
index abb748b6d..02427fb49 100644
--- a/cmd/ncdu/ncdu.go
+++ b/cmd/ncdu/ncdu.go
@@ -1,8 +1,7 @@
-// Package ncdu implements a text based user interface for exploring a remote
-
 //go:build !plan9 && !js
 // +build !plan9,!js
 
+// Package ncdu implements a text based user interface for exploring a remote
 package ncdu
 
 import (
diff --git a/cmd/obscure/obscure.go b/cmd/obscure/obscure.go
index d26f1d72b..08cf8a06a 100644
--- a/cmd/obscure/obscure.go
+++ b/cmd/obscure/obscure.go
@@ -1,3 +1,4 @@
+// Package obscure provides the obscure command.
 package obscure
 
 import (
diff --git a/cmd/purge/purge.go b/cmd/purge/purge.go
index 335615cf9..d41e22cf6 100644
--- a/cmd/purge/purge.go
+++ b/cmd/purge/purge.go
@@ -1,3 +1,4 @@
+// Package purge provides the purge command.
 package purge
 
 import (
diff --git a/cmd/rc/rc.go b/cmd/rc/rc.go
index 53e8697d8..93c2e319e 100644
--- a/cmd/rc/rc.go
+++ b/cmd/rc/rc.go
@@ -1,3 +1,4 @@
+// Package rc provides the rc command.
 package rc
 
 import (
diff --git a/cmd/rcat/rcat.go b/cmd/rcat/rcat.go
index f082fa95d..c7766265d 100644
--- a/cmd/rcat/rcat.go
+++ b/cmd/rcat/rcat.go
@@ -1,3 +1,4 @@
+// Package rcat provides the rcat command.
 package rcat
 
 import (
diff --git a/cmd/rcd/rcd.go b/cmd/rcd/rcd.go
index cc4be57f9..940c300a6 100644
--- a/cmd/rcd/rcd.go
+++ b/cmd/rcd/rcd.go
@@ -1,3 +1,4 @@
+// Package rcd provides the rcd command.
 package rcd
 
 import (
diff --git a/cmd/reveal/reveal.go b/cmd/reveal/reveal.go
index 817dd92dd..e569a26b4 100644
--- a/cmd/reveal/reveal.go
+++ b/cmd/reveal/reveal.go
@@ -1,3 +1,4 @@
+// Package reveal provides the reveal command.
 package reveal
 
 import (
diff --git a/cmd/rmdir/rmdir.go b/cmd/rmdir/rmdir.go
index 9b532ca47..778315be8 100644
--- a/cmd/rmdir/rmdir.go
+++ b/cmd/rmdir/rmdir.go
@@ -1,3 +1,4 @@
+// Package rmdir provides the rmdir command.
 package rmdir
 
 import (
diff --git a/cmd/rmdirs/rmdirs.go b/cmd/rmdirs/rmdirs.go
index 41788c527..11a09ca20 100644
--- a/cmd/rmdirs/rmdirs.go
+++ b/cmd/rmdirs/rmdirs.go
@@ -1,3 +1,4 @@
+// Package rmdir provides the rmdir command.
 package rmdir
 
 import (
diff --git a/cmd/selfupdate/selfupdate.go b/cmd/selfupdate/selfupdate.go
index 5bfd1cb66..ab24290b3 100644
--- a/cmd/selfupdate/selfupdate.go
+++ b/cmd/selfupdate/selfupdate.go
@@ -1,6 +1,7 @@
 //go:build !noselfupdate
 // +build !noselfupdate
 
+// Package selfupdate provides the selfupdate command.
 package selfupdate
 
 import (
diff --git a/cmd/serve/dlna/data/data.go b/cmd/serve/dlna/data/data.go
index 8e142b99f..a5a92880c 100644
--- a/cmd/serve/dlna/data/data.go
+++ b/cmd/serve/dlna/data/data.go
@@ -1,6 +1,7 @@
-//go:generate go run assets_generate.go
+// Package data provides utilities for DLNA server.
 // The "go:generate" directive compiles static assets by running assets_generate.go
-
+//
+//go:generate go run assets_generate.go
 package data
 
 import (
diff --git a/cmd/serve/dlna/dlna.go b/cmd/serve/dlna/dlna.go
index da6a08a19..c36e492d7 100644
--- a/cmd/serve/dlna/dlna.go
+++ b/cmd/serve/dlna/dlna.go
@@ -1,3 +1,4 @@
+// Package dlna provides DLNA server.
 package dlna
 
 import (
diff --git a/cmd/serve/dlna/dlnaflags/dlnaflags.go b/cmd/serve/dlna/dlnaflags/dlnaflags.go
index 06ea27a19..85a1347dc 100644
--- a/cmd/serve/dlna/dlnaflags/dlnaflags.go
+++ b/cmd/serve/dlna/dlnaflags/dlnaflags.go
@@ -1,3 +1,4 @@
+// Package dlnaflags provides utility functionality to DLNA.
 package dlnaflags
 
 import (
diff --git a/cmd/serve/dlna/upnpav/upnpav.go b/cmd/serve/dlna/upnpav/upnpav.go
index 5ac5e17b7..c6dc9dc4f 100644
--- a/cmd/serve/dlna/upnpav/upnpav.go
+++ b/cmd/serve/dlna/upnpav/upnpav.go
@@ -1,3 +1,4 @@
+// Package upnpav provides utilities for DLNA server.
 package upnpav
 
 import (
diff --git a/cmd/serve/ftp/ftp.go b/cmd/serve/ftp/ftp.go
index 11753e42f..08cca77f3 100644
--- a/cmd/serve/ftp/ftp.go
+++ b/cmd/serve/ftp/ftp.go
@@ -1,8 +1,7 @@
-// Package ftp implements an FTP server for rclone
-
 //go:build !plan9
 // +build !plan9
 
+// Package ftp implements an FTP server for rclone
 package ftp
 
 import (
diff --git a/cmd/serve/http/data/data.go b/cmd/serve/http/data/data.go
index 73f6a1ff2..075acf8b7 100644
--- a/cmd/serve/http/data/data.go
+++ b/cmd/serve/http/data/data.go
@@ -1,6 +1,7 @@
-//go:generate go run assets_generate.go
+// Package data provides common functionality for http servers
 // The "go:generate" directive compiles static assets by running assets_generate.go
-
+//
+//go:generate go run assets_generate.go
 package data
 
 import (
diff --git a/cmd/serve/http/http.go b/cmd/serve/http/http.go
index 8712f8ac8..cdf8afd28 100644
--- a/cmd/serve/http/http.go
+++ b/cmd/serve/http/http.go
@@ -1,3 +1,4 @@
+// Package http provides common functionality for http servers
 package http
 
 import (
diff --git a/cmd/serve/httplib/httpflags/httpflags.go b/cmd/serve/httplib/httpflags/httpflags.go
index 899482b7f..109604f0e 100644
--- a/cmd/serve/httplib/httpflags/httpflags.go
+++ b/cmd/serve/httplib/httpflags/httpflags.go
@@ -1,3 +1,4 @@
+// Package httpflags provides utility functionality to HTTP.
 package httpflags
 
 import (
diff --git a/cmd/serve/serve.go b/cmd/serve/serve.go
index 848cb24bb..f79162c82 100644
--- a/cmd/serve/serve.go
+++ b/cmd/serve/serve.go
@@ -1,3 +1,4 @@
+// Package serve provides the serve command.
 package serve
 
 import (
diff --git a/cmd/serve/sftp/sftp.go b/cmd/serve/sftp/sftp.go
index c77450a5e..1a7b7717c 100644
--- a/cmd/serve/sftp/sftp.go
+++ b/cmd/serve/sftp/sftp.go
@@ -1,8 +1,7 @@
-// Package sftp implements an SFTP server to serve an rclone VFS
-
 //go:build !plan9
 // +build !plan9
 
+// Package sftp implements an SFTP server to serve an rclone VFS
 package sftp
 
 import (
diff --git a/cmd/settier/settier.go b/cmd/settier/settier.go
index 6be1c1c6a..8a1d234f0 100644
--- a/cmd/settier/settier.go
+++ b/cmd/settier/settier.go
@@ -1,3 +1,4 @@
+// Package settier provides the settier command.
 package settier
 
 import (
diff --git a/cmd/sha1sum/sha1sum.go b/cmd/sha1sum/sha1sum.go
index 1c3115a8b..25badd19c 100644
--- a/cmd/sha1sum/sha1sum.go
+++ b/cmd/sha1sum/sha1sum.go
@@ -1,3 +1,4 @@
+// Package sha1sum provides the sha1sum command.
 package sha1sum
 
 import (
diff --git a/cmd/size/size.go b/cmd/size/size.go
index 5ed51c7a6..c084de527 100644
--- a/cmd/size/size.go
+++ b/cmd/size/size.go
@@ -1,3 +1,4 @@
+// Package size provides the size command.
 package size
 
 import (
diff --git a/cmd/sync/sync.go b/cmd/sync/sync.go
index be233cdd9..33a5b0027 100644
--- a/cmd/sync/sync.go
+++ b/cmd/sync/sync.go
@@ -1,3 +1,4 @@
+// Package sync provides the sync command.
 package sync
 
 import (
diff --git a/cmd/test/histogram/histogram.go b/cmd/test/histogram/histogram.go
index d4f02d5d9..a3a2865b8 100644
--- a/cmd/test/histogram/histogram.go
+++ b/cmd/test/histogram/histogram.go
@@ -1,3 +1,4 @@
+// Package histogram provides the histogram test command.
 package histogram
 
 import (
diff --git a/cmd/test/info/info.go b/cmd/test/info/info.go
index c4eef5f04..89cc10a01 100644
--- a/cmd/test/info/info.go
+++ b/cmd/test/info/info.go
@@ -1,3 +1,4 @@
+// Package info provides the info test command.
 package info
 
 // FIXME once translations are implemented will need a no-escape
diff --git a/cmd/test/info/internal/build_csv/main.go b/cmd/test/info/internal/build_csv/main.go
index 96aa20a19..fbabe5b85 100644
--- a/cmd/test/info/internal/build_csv/main.go
+++ b/cmd/test/info/internal/build_csv/main.go
@@ -1,3 +1,4 @@
+// Package main provides utilities for the info test command.
 package main
 
 import (
diff --git a/cmd/test/info/internal/internal.go b/cmd/test/info/internal/internal.go
index 663662904..7af06b87a 100644
--- a/cmd/test/info/internal/internal.go
+++ b/cmd/test/info/internal/internal.go
@@ -1,3 +1,4 @@
+// Package internal provides internal implementation for the info test command.
 package internal
 
 import (
diff --git a/cmd/test/memory/memory.go b/cmd/test/memory/memory.go
index 551723258..38b7b1683 100644
--- a/cmd/test/memory/memory.go
+++ b/cmd/test/memory/memory.go
@@ -1,3 +1,4 @@
+// Package memory provides the memory test command.
 package memory
 
 import (
diff --git a/cmd/test/test.go b/cmd/test/test.go
index 39f5ccb29..774bf6c3a 100644
--- a/cmd/test/test.go
+++ b/cmd/test/test.go
@@ -1,3 +1,4 @@
+// Package test provides the test command.
 package test
 
 import (
diff --git a/cmd/touch/touch.go b/cmd/touch/touch.go
index 741c920b3..9f3d69b14 100644
--- a/cmd/touch/touch.go
+++ b/cmd/touch/touch.go
@@ -1,3 +1,4 @@
+// Package touch provides the touch command.
 package touch
 
 import (
diff --git a/cmd/tree/tree.go b/cmd/tree/tree.go
index 2528d9dc2..5705dcec8 100644
--- a/cmd/tree/tree.go
+++ b/cmd/tree/tree.go
@@ -1,3 +1,4 @@
+// Package tree provides the tree command.
 package tree
 
 import (
diff --git a/cmd/version/version.go b/cmd/version/version.go
index 3ec69e135..25a17aa41 100644
--- a/cmd/version/version.go
+++ b/cmd/version/version.go
@@ -1,3 +1,4 @@
+// Package version provides the version command.
 package version
 
 import (
diff --git a/fs/chunkedreader/chunkedreader.go b/fs/chunkedreader/chunkedreader.go
index 1e29ea736..66cf666d2 100644
--- a/fs/chunkedreader/chunkedreader.go
+++ b/fs/chunkedreader/chunkedreader.go
@@ -1,3 +1,4 @@
+// Package chunkedreader provides functionality for reading in chunks.
 package chunkedreader
 
 import (
diff --git a/fs/driveletter/driveletter.go b/fs/driveletter/driveletter.go
index 0a683509e..0c02f3976 100644
--- a/fs/driveletter/driveletter.go
+++ b/fs/driveletter/driveletter.go
@@ -1,8 +1,7 @@
-// Package driveletter returns whether a name is a valid drive letter
-
 //go:build !windows
 // +build !windows
 
+// Package driveletter returns whether a name is a valid drive letter
 package driveletter
 
 // IsDriveLetter returns a bool indicating whether name is a valid
diff --git a/fs/driveletter/driveletter_windows.go b/fs/driveletter/driveletter_windows.go
index 40ca94d43..f8b506a80 100644
--- a/fs/driveletter/driveletter_windows.go
+++ b/fs/driveletter/driveletter_windows.go
@@ -1,6 +1,7 @@
 //go:build windows
 // +build windows
 
+// Package driveletter returns whether a name is a valid drive letter
 package driveletter
 
 // IsDriveLetter returns a bool indicating whether name is a valid
diff --git a/fs/hash/hash.go b/fs/hash/hash.go
index 93b1de3b2..4540b40cf 100644
--- a/fs/hash/hash.go
+++ b/fs/hash/hash.go
@@ -1,3 +1,4 @@
+// Package hash provides hash utilities for Fs.
 package hash
 
 import (
diff --git a/fs/rc/jobs/job.go b/fs/rc/jobs/job.go
index cb3aaa833..613093e25 100644
--- a/fs/rc/jobs/job.go
+++ b/fs/rc/jobs/job.go
@@ -1,5 +1,4 @@
-// Manage background jobs that the rc is running
-
+// Package jobs manages background jobs that the rc is running.
 package jobs
 
 import (
diff --git a/fs/rc/webgui/plugins.go b/fs/rc/webgui/plugins.go
index a6730aacb..23f9692c2 100644
--- a/fs/rc/webgui/plugins.go
+++ b/fs/rc/webgui/plugins.go
@@ -1,3 +1,4 @@
+// Package webgui provides plugin functionality to the Web GUI.
 package webgui
 
 import (
diff --git a/fs/rc/webgui/webgui.go b/fs/rc/webgui/webgui.go
index 8153024d1..ee05730f7 100644
--- a/fs/rc/webgui/webgui.go
+++ b/fs/rc/webgui/webgui.go
@@ -1,5 +1,4 @@
-// Define the Web GUI helpers
-
+// Package webgui defines the Web GUI helpers.
 package webgui
 
 import (
diff --git a/fstest/mockfs/mockfs.go b/fstest/mockfs/mockfs.go
index fe73db5ca..62489c2f6 100644
--- a/fstest/mockfs/mockfs.go
+++ b/fstest/mockfs/mockfs.go
@@ -1,3 +1,4 @@
+// Package mockfs provides mock Fs for testing.
 package mockfs
 
 import (
diff --git a/lib/buildinfo/tags.go b/lib/buildinfo/tags.go
index 6e61a457d..945a1e445 100644
--- a/lib/buildinfo/tags.go
+++ b/lib/buildinfo/tags.go
@@ -1,3 +1,4 @@
+// Package buildinfo provides build information.
 package buildinfo
 
 import (
diff --git a/lib/daemonize/daemon_other.go b/lib/daemonize/daemon_other.go
index 788d034e0..a0781d453 100644
--- a/lib/daemonize/daemon_other.go
+++ b/lib/daemonize/daemon_other.go
@@ -1,8 +1,7 @@
-// Daemonization stub for non-Unix platforms (implementation)
-
 //go:build windows || plan9 || js
 // +build windows plan9 js
 
+// Package daemonize provides daemonization stub for non-Unix platforms.
 package daemonize
 
 import (
diff --git a/lib/daemonize/daemon_unix.go b/lib/daemonize/daemon_unix.go
index beb89f7ac..1fcb2c55c 100644
--- a/lib/daemonize/daemon_unix.go
+++ b/lib/daemonize/daemon_unix.go
@@ -1,8 +1,7 @@
-// Daemonization interface for Unix platforms (implementation)
-
 //go:build !windows && !plan9 && !js
 // +build !windows,!plan9,!js
 
+// Package daemonize provides daemonization interface for Unix platforms.
 package daemonize
 
 import (
diff --git a/lib/encoder/encoder.go b/lib/encoder/encoder.go
index d50a2fcfe..a14d7c848 100644
--- a/lib/encoder/encoder.go
+++ b/lib/encoder/encoder.go
@@ -1,15 +1,13 @@
-/*
-Translate file names for usage on restrictive storage systems
-
-The restricted set of characters are mapped to a unicode equivalent version
-(most to their FULLWIDTH variant) to increase compatibility with other
-storage systems.
-See: http://unicode-search.net/unicode-namesearch.pl?term=FULLWIDTH
-
-Encoders will also quote reserved characters to differentiate between
-the raw and encoded forms.
-*/
-
+// Package encoder provides functionality to translate file names
+// for usage on restrictive storage systems.
+//
+// The restricted set of characters are mapped to a unicode equivalent version
+// (most to their FULLWIDTH variant) to increase compatibility with other
+// storage systems.
+// See: http://unicode-search.net/unicode-namesearch.pl?term=FULLWIDTH
+//
+// Encoders will also quote reserved characters to differentiate between
+// the raw and encoded forms.
 package encoder
 
 import (
diff --git a/lib/encoder/filename/init.go b/lib/encoder/filename/init.go
index 0cbc53c3c..ea206cb9e 100644
--- a/lib/encoder/filename/init.go
+++ b/lib/encoder/filename/init.go
@@ -1,3 +1,4 @@
+// Package filename provides utilities for encoder.
 package filename
 
 import (
diff --git a/lib/encoder/internal/gen/main.go b/lib/encoder/internal/gen/main.go
index a94c37935..97bcb32ba 100644
--- a/lib/encoder/internal/gen/main.go
+++ b/lib/encoder/internal/gen/main.go
@@ -1,3 +1,4 @@
+// Package main provides utilities for encoder.
 package main
 
 import (
diff --git a/lib/errors/errors.go b/lib/errors/errors.go
index 68238521e..ed848cbd6 100644
--- a/lib/errors/errors.go
+++ b/lib/errors/errors.go
@@ -1,3 +1,4 @@
+// Package errors provides error handling utilites.
 package errors
 
 import (
diff --git a/lib/file/preallocate_windows.go b/lib/file/preallocate_windows.go
index 49352356a..39955092e 100644
--- a/lib/file/preallocate_windows.go
+++ b/lib/file/preallocate_windows.go
@@ -92,7 +92,7 @@ func PreAllocate(size int64, out *os.File) error {
 }
 
 const (
-	FSCTL_SET_SPARSE = 0x000900c4
+	FSCTL_SET_SPARSE = 0x000900c4 // Control code to set or clears the FILE_ATTRIBUTE_SPARSE_FILE attribute of a file.
 )
 
 // SetSparseImplemented is a constant indicating whether the
diff --git a/lib/http/auth/auth.go b/lib/http/auth/auth.go
index e30ee9383..db50c8a30 100644
--- a/lib/http/auth/auth.go
+++ b/lib/http/auth/auth.go
@@ -1,3 +1,4 @@
+// Package auth provides authentication for http.
 package auth
 
 import (
diff --git a/lib/jwtutil/jwtutil.go b/lib/jwtutil/jwtutil.go
index af99ed3f8..583036be9 100644
--- a/lib/jwtutil/jwtutil.go
+++ b/lib/jwtutil/jwtutil.go
@@ -1,3 +1,4 @@
+// Package jwtutil provides JWT utilities.
 package jwtutil
 
 import (
diff --git a/lib/kv/bolt.go b/lib/kv/bolt.go
index 5f9f3d7a6..6fcfe49dd 100644
--- a/lib/kv/bolt.go
+++ b/lib/kv/bolt.go
@@ -1,6 +1,7 @@
 //go:build !plan9 && !js
 // +build !plan9,!js
 
+// Package kv provides key/value database.
 package kv
 
 import (
diff --git a/lib/mmap/mmap.go b/lib/mmap/mmap.go
index 719bcf816..4f323c938 100644
--- a/lib/mmap/mmap.go
+++ b/lib/mmap/mmap.go
@@ -1,3 +1,4 @@
+// Package mmap provides memory mapped related utilities.
 package mmap
 
 import "os"
diff --git a/lib/oauthutil/oauthutil.go b/lib/oauthutil/oauthutil.go
index 350fe1671..a7326e886 100644
--- a/lib/oauthutil/oauthutil.go
+++ b/lib/oauthutil/oauthutil.go
@@ -1,3 +1,4 @@
+// Package oauthutil provides OAuth utilities.
 package oauthutil
 
 import (
diff --git a/lib/readers/context.go b/lib/readers/context.go
index 6af6efbaf..177b18809 100644
--- a/lib/readers/context.go
+++ b/lib/readers/context.go
@@ -1,3 +1,4 @@
+// Package readers provides io.Reader related utilities.
 package readers
 
 import (
diff --git a/vfs/vfs.go b/vfs/vfs.go
index b6dc141b3..77ccdf499 100644
--- a/vfs/vfs.go
+++ b/vfs/vfs.go
@@ -10,15 +10,14 @@
 // may be referred to as "".  However Stat strips slashes so you can
 // use paths with slashes in.
 //
-// It also includes directory caching
+// # It also includes directory caching
 //
 // The vfs package returns Error values to signal precisely which
 // error conditions have ocurred.  It may also return general errors
 // it receives.  It tries to use os Error values (e.g. os.ErrExist)
 // where possible.
-
+//
 //go:generate sh -c "go run make_open_tests.go | gofmt > open_test.go"
-
 package vfs
 
 import (
diff --git a/vfs/vfscache/downloaders/downloaders.go b/vfs/vfscache/downloaders/downloaders.go
index 46018c7e1..8d6e90fb2 100644
--- a/vfs/vfscache/downloaders/downloaders.go
+++ b/vfs/vfscache/downloaders/downloaders.go
@@ -1,3 +1,4 @@
+// Package downloaders provides utilities for the VFS layer
 package downloaders
 
 import (
diff --git a/vfs/vfscommon/cachemode.go b/vfs/vfscommon/cachemode.go
index a2d91bd4e..c82f3bc98 100644
--- a/vfs/vfscommon/cachemode.go
+++ b/vfs/vfscommon/cachemode.go
@@ -1,3 +1,4 @@
+// Package vfscommon provides utilities for VFS.
 package vfscommon
 
 import (
diff --git a/vfs/vfstest/vfs.go b/vfs/vfstest/vfs.go
index 382fb8844..ad56fd42e 100644
--- a/vfs/vfstest/vfs.go
+++ b/vfs/vfstest/vfs.go
@@ -1,3 +1,4 @@
+// Package vfstest provides tests for VFS.
 package vfstest
 
 import (