diff --git a/.Rbuildignore b/.Rbuildignore
index e4952c6..ffc6fc4 100644
--- a/.Rbuildignore
+++ b/.Rbuildignore
@@ -3,3 +3,4 @@
 ^LICENSE\.md$
 notebooks
 reports
+releases
diff --git a/DESCRIPTION b/DESCRIPTION
index a3c18ec..4bb7c21 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -50,12 +50,16 @@ Imports:
     keyring,
     getPass,
     sodium (>= 1.1),
-    Rcpp (>= 1.0.8),
     qs (>= 0.25),
-    cyphr,
     stringr,
+    dplyr,
+    rlang,
+    tibble,
+    magrittr,
     shiny,
+    shinydashboard,
     shinythemes,
+    htmltools,
     markdown
 Depends:
     R (>= 4.1.0),
diff --git a/NAMESPACE b/NAMESPACE
index 5b4de96..e7cde96 100644
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -22,19 +22,26 @@ export(gy_unzip)
 export(gy_users)
 export(gy_zip)
 export(run_app)
+import(magrittr)
 import(shiny)
 import(shinydashboard)
 importFrom(base64enc,base64decode)
 importFrom(base64enc,base64encode)
+importFrom(dplyr,arrange)
+importFrom(dplyr,mutate)
 importFrom(getPass,getPass)
+importFrom(htmltools,includeMarkdown)
 importFrom(keyring,key_delete)
 importFrom(keyring,key_get)
 importFrom(keyring,key_list)
 importFrom(keyring,key_set_with_value)
+importFrom(markdown,mark)
 importFrom(qs,qdeserialize)
 importFrom(qs,qserialize)
+importFrom(rlang,.data)
 importFrom(rstudioapi,isAvailable)
 importFrom(rstudioapi,selectDirectory)
+importFrom(shinythemes,shinytheme)
 importFrom(sodium,auth_decrypt)
 importFrom(sodium,auth_encrypt)
 importFrom(sodium,data_decrypt)
@@ -49,8 +56,12 @@ importFrom(sodium,sig_verify)
 importFrom(sodium,simple_decrypt)
 importFrom(sodium,simple_encrypt)
 importFrom(stringr,str_c)
+importFrom(stringr,str_detect)
 importFrom(stringr,str_glue)
 importFrom(stringr,str_remove)
+importFrom(stringr,str_split)
+importFrom(tibble,as_tibble)
+importFrom(utils,download.file)
 importFrom(zip,unzip)
 importFrom(zip,zip)
 importFrom(zip,zip_list)
diff --git a/R/get_localuser.R b/R/get_localuser.R
index fd1af7d..35aa4d5 100644
--- a/R/get_localuser.R
+++ b/R/get_localuser.R
@@ -1,3 +1,8 @@
+#' @importFrom utils download.file
+#' @importFrom stringr str_detect str_split
+#' @importFrom tibble as_tibble
+#' @importFrom dplyr mutate arrange
+
 get_localuser <- function(){
   if(is.null(package_env$currentlocal)) gy_profile()
 
diff --git a/R/goldeneye-package.R b/R/goldeneye-package.R
index a65cf64..ea03dd1 100644
--- a/R/goldeneye-package.R
+++ b/R/goldeneye-package.R
@@ -1,3 +1,6 @@
+#' @importFrom shinythemes shinytheme
+#' @importFrom htmltools includeMarkdown
+#' @importFrom markdown mark
 #' @keywords internal
 "_PACKAGE"
 
diff --git a/R/gy_check.R b/R/gy_check.R
index 34d44cc..e431b56 100644
--- a/R/gy_check.R
+++ b/R/gy_check.R
@@ -4,6 +4,8 @@
 #' @param path path to goldeneye profile
 #' @param silent option to suppress output to screen
 #'
+#' @importFrom rlang .data
+#' @import magrittr
 
 #' @rdname gy_profile
 #' @export
@@ -62,8 +64,8 @@ gy_info <- function(silent=FALSE){
         c(unlist(x[c("user","name","email")]), member_since=as.character(x$member_since))
       }, character(4))) %>%
         as_tibble() %>%
-        mutate(member_since=as.Date(member_since)) %>%
-        arrange(member_since)
+        mutate(member_since=as.Date(.data$member_since)) %>%
+        arrange(.data$member_since)
       if(redact) usrs$email <- "**@**.**"
       print(usrs)
     }
@@ -94,8 +96,8 @@ gy_info <- function(silent=FALSE){
         c(unlist(x[c("user","name","email")]), member_since=as.character(x$member_since))
       }, character(4))) %>%
         as_tibble() %>%
-        mutate(member_since=as.Date(member_since)) %>%
-        arrange(member_since)
+        mutate(member_since=as.Date(.data$member_since)) %>%
+        arrange(.data$member_since)
       if(redact) usrs$email <- "**@**.**"
       print(usrs)
     }
diff --git a/R/gy_create_group.R b/R/gy_create_group.R
index 2b37c6b..a3feab4 100644
--- a/R/gy_create_group.R
+++ b/R/gy_create_group.R
@@ -18,7 +18,7 @@ gy_create_group <- function(group, weblink, password){
 
 
   weblink <- readRDS(getOption("goldeneye_path"))$groups$goldfinger$weblink
-  webinfo <- goldeneye:::refresh_users(weblink)
+  webinfo <- refresh_users(weblink)
   user_info <- webinfo$users
   names(user_info)
 
@@ -47,18 +47,19 @@ gy_create_group <- function(group, weblink, password){
 
   users <- list(usernames=usernames, user_info=sodium::data_encrypt(serialize(user_info, NULL), sodium::hash(charToRaw(webpwd))), message=sodium::data_encrypt(serialize(msg, NULL), sodium::hash(charToRaw(webpwd))), public_curve=public_curve, public_ed=public_ed)
 
-  verification <- goldeneye:::gy_sign(users)
+  verification <- gy_sign(users)
 
   versions <- attr(verification, "versions")
   versions["type"] <- "generic"
   versions["minimum"] <- "0.5.0-1"
   attr(verification, "versions") <- versions
-  stopifnot(goldeneye:::gy_verify(users, verification, silent=TRUE))
+  stopifnot(gy_verify(users, verification, silent=TRUE))
   attr(verification, "user") <- NULL
 
   keys <- list(group="demo22", users=users, verification=verification)
   saveRDS(keys, "demo22.gyg", compress=FALSE)
 
+  webpwd <- NULL
   weblink <- str_c("https://www.costmodds.org/rsc/goldeneye/demo22.gyg#",webpwd,"#md")
 
 
diff --git a/R/gy_encrypt.R b/R/gy_encrypt.R
index 924b638..b06dde8 100644
--- a/R/gy_encrypt.R
+++ b/R/gy_encrypt.R
@@ -5,6 +5,8 @@
 #' @param local_user should the current user also be able to decrypt thw file?
 #' @param comment an optional comment that will be sent (unencrypted) along with the file
 #' @param funs optional additional encryption steps: this must be the output of a call to \code{\link{gy_key_funs}}
+#' @param run_custom should any custom decryption functions be run automatically?
+#' @param type the type of public key to return ("curve" or "ed")
 #'
 #' @rdname gy_encrypt
 #' @export
diff --git a/R/gy_join_group.R b/R/gy_join_group.R
index e3413c9..70b2bbc 100644
--- a/R/gy_join_group.R
+++ b/R/gy_join_group.R
@@ -1,9 +1,10 @@
 #' @name gy_join_group
 #' @title Join an existing goldeneye user group via a weblink
-#'
-#'
 #' @param weblink the weblink as provided by the group administrator
 #' @param user the username that you want to use for this group
+#' @param make_default should this become the default group?
+#' @param group the name of the group to set
+#' @param silent option to silence output
 #'
 #' @importFrom stringr str_glue
 #'
@@ -44,7 +45,7 @@ gy_join_group <- function(weblink=NULL, user=NULL, make_default=FALSE){
   }else if(!is.null(local$user)){
     tuser <- local$user
   }else if(!is.na(local$groups$default_group)){
-    if(!default_group %in% names(local$group)){
+    if(!"default_group" %in% names(local$group)){
       stop("An unexpected error occured with the groups element of your user profile: please contact the package maintaner with this error message for help")
     }
     tuser <- local$groups[[local$groups$default_group]][["user"]]
diff --git a/R/gy_key_funs.R b/R/gy_key_funs.R
index a4882f6..ea27102 100644
--- a/R/gy_key_funs.R
+++ b/R/gy_key_funs.R
@@ -1,11 +1,8 @@
-#' Title
+#' Obtain key functions
 #'
-#' @param type
+#' @param type type of key function (only "identity" is currently supported)
 #'
-#' @return
 #' @export
-#'
-#' @examples
 gy_key_funs <- function(type){
 
   stopifnot(type=="identity")
diff --git a/R/gy_public_file.R b/R/gy_public_file.R
index cfc8f95..4000560 100644
--- a/R/gy_public_file.R
+++ b/R/gy_public_file.R
@@ -1,7 +1,7 @@
-#' Title
+#' Extract the public key file
 #'
-#' @param file
-#' @param silent
+#' @param file filename to write to
+#' @param silent do this quietly?
 #'
 #' @export
 gy_public_file <- function(file="goldeneye_public.gyu", silent=FALSE){
diff --git a/R/gy_saveRDS.R b/R/gy_saveRDS.R
index acfea6e..ec7ee09 100644
--- a/R/gy_saveRDS.R
+++ b/R/gy_saveRDS.R
@@ -1,13 +1,16 @@
 #' @name gf_saveRDS
 #' @title Save and read encrypted RDS
-#' @param object
-#' @param file
-#' @param user
-#' @param local_user
-#' @param ascii
-#' @param version
-#' @param compress
-#' @param overwrite
+#'
+#' @param object the object to encrypt
+#' @param file the filename to which the encrypted object will be saved
+#' @param users one or more users who will be authorised to decrypt the file
+#' @param local_user should the local user be able to decrypt the file?
+#' @param comment a comment to include
+#' @param overwrite should the file be overwritten, if it exists?
+#' @param ascii argument passed to saveRDS
+#' @param funs argument passed to saveRDS
+#' @param ... arguments passed to gy_serialise
+#' @param run_custom should any custom decryption functions be run automatically?
 #'
 #' @rdname gy_saveRDS
 #' @export
diff --git a/R/gy_serialise.R b/R/gy_serialise.R
index 522dd61..dcdcbc3 100644
--- a/R/gy_serialise.R
+++ b/R/gy_serialise.R
@@ -1,13 +1,9 @@
 #' @name gy_serialise
 #' @title Serialise and deserialise a list of objects/files
-#' @param object
-#' @param file
-#' @param user
-#' @param local_user
-#' @param ascii
-#' @param version
-#' @param compress
-#' @param overwrite
+#' @param object the object to encrypt
+#' @param files external files to serialise (not yet implemented)
+#' @param method the serialisation method to use (base, qs, or custom)
+#' @param ... arguments passed to the underlying serialisation method
 #'
 #' @importFrom qs qserialize qdeserialize
 #'
diff --git a/R/gy_setup.R b/R/gy_setup.R
index bb7fba7..623c274 100644
--- a/R/gy_setup.R
+++ b/R/gy_setup.R
@@ -1,4 +1,11 @@
-#' Title
+#' Setup a new goldeyene encryption profile
+#'
+#' @param name your full name
+#' @param email your email address
+#' @param filename the filename to which the profile will be saved
+#' @param path the path in which to save the profile
+#' @param append_Rprofile should the R profile file be appended to automatically load this profile when R is restarted?
+#' @param silent option to suppress output
 #'
 #' @importFrom stringr str_remove str_c
 #' @importFrom getPass getPass
diff --git a/R/gy_users.R b/R/gy_users.R
index c36829f..1c29304 100644
--- a/R/gy_users.R
+++ b/R/gy_users.R
@@ -1,12 +1,9 @@
-#' Title
+#' Obtain a list of users for a given group
 #'
-#' @param group
-#' @param refresh
+#' @param group the group for which to return users (defaults to the active group)
+#' @param refresh should the list be refreshed from the remote/online location?
 #'
-#' @return
 #' @export
-#'
-#' @examples
 gy_users <- function(group=NULL, refresh=FALSE){
 
   if(is.null(package_env$currentlocal)) gy_profile(silent=TRUE)
@@ -27,8 +24,8 @@ gy_users <- function(group=NULL, refresh=FALSE){
     c(unlist(x[c("user","name","email")]), member_since=as.character(x$member_since))
     }, character(4))) %>%
     as_tibble() %>%
-    mutate(member_since=as.Date(member_since)) %>%
-    arrange(member_since)
+    mutate(member_since=as.Date(.data$member_since)) %>%
+    arrange(.data$member_since)
 
   if(redact) usrs$email <- "**@**.**"
 
diff --git a/R/gy_zip.R b/R/gy_zip.R
index d860c0c..56e89a8 100644
--- a/R/gy_zip.R
+++ b/R/gy_zip.R
@@ -1,11 +1,16 @@
 #' @name gy_zip
 #' @title Zip and encrypt external files using goldeneye
-#' @param files one or more files to add to the zip archive
+#' @param input_files one or more files to add to the zip archive
+#' @param file the filename to which the encrypted object will be saved
 #' @param compression_level compression level to use on a scale of 1-9 (passed to \code{\link[zip]{zip}})
 #' @param users a character vector of (other) users within your current user group for whom the encrypted file will be decryptable. Alternatively, this can be a vector of paths/urls to public keys, or a mixture of the two.
 #' @param local_user should the current user also be able to decrypt thw file?
 #' @param comment an optional comment that will be sent (unencrypted) along with the file
 #' @param funs optional additional encryption steps: this must be the output of a call to \code{\link{gy_key_funs}}
+#' @param directory the directory to which the decrypted/unzipped files will be saved
+#' @param unzip should the decrypted files also be unzipped?
+#' @param overwrite should the file be overwritten, if it exists?
+#' @param run_custom should any custom decryption functions be run automatically?
 #'
 #' @importFrom zip zip unzip zip_list
 #' @importFrom base64enc base64encode base64decode
diff --git a/man/gy_encrypt.Rd b/man/gy_encrypt.Rd
index 56bda7c..ae3222d 100644
--- a/man/gy_encrypt.Rd
+++ b/man/gy_encrypt.Rd
@@ -28,6 +28,10 @@ get_public_keys(users, type = "curve")
 \item{comment}{an optional comment that will be sent (unencrypted) along with the file}
 
 \item{funs}{optional additional encryption steps: this must be the output of a call to \code{\link{gy_key_funs}}}
+
+\item{run_custom}{should any custom decryption functions be run automatically?}
+
+\item{type}{the type of public key to return ("curve" or "ed")}
 }
 \description{
 Encrypt and decrypt a pre-serialised object using goldeneye
diff --git a/man/gy_join_group.Rd b/man/gy_join_group.Rd
index f98d9e7..f6c6b4f 100644
--- a/man/gy_join_group.Rd
+++ b/man/gy_join_group.Rd
@@ -13,6 +13,12 @@ gy_set_group(group, make_default = FALSE, silent = FALSE)
 \item{weblink}{the weblink as provided by the group administrator}
 
 \item{user}{the username that you want to use for this group}
+
+\item{make_default}{should this become the default group?}
+
+\item{group}{the name of the group to set}
+
+\item{silent}{option to silence output}
 }
 \description{
 Join an existing goldeneye user group via a weblink
diff --git a/man/gy_key_funs.Rd b/man/gy_key_funs.Rd
index b9f5598..454bff6 100644
--- a/man/gy_key_funs.Rd
+++ b/man/gy_key_funs.Rd
@@ -2,13 +2,13 @@
 % Please edit documentation in R/gy_key_funs.R
 \name{gy_key_funs}
 \alias{gy_key_funs}
-\title{Title}
+\title{Obtain key functions}
 \usage{
 gy_key_funs(type)
 }
 \arguments{
-\item{type}{}
+\item{type}{type of key function (only "identity" is currently supported)}
 }
 \description{
-Title
+Obtain key functions
 }
diff --git a/man/gy_public_file.Rd b/man/gy_public_file.Rd
index 7780512..e30c10c 100644
--- a/man/gy_public_file.Rd
+++ b/man/gy_public_file.Rd
@@ -2,13 +2,15 @@
 % Please edit documentation in R/gy_public_file.R
 \name{gy_public_file}
 \alias{gy_public_file}
-\title{Title}
+\title{Extract the public key file}
 \usage{
 gy_public_file(file = "goldeneye_public.gyu", silent = FALSE)
 }
 \arguments{
-\item{silent}{}
+\item{file}{filename to write to}
+
+\item{silent}{do this quietly?}
 }
 \description{
-Title
+Extract the public key file
 }
diff --git a/man/gy_saveRDS.Rd b/man/gy_saveRDS.Rd
index fde12a5..10dff55 100644
--- a/man/gy_saveRDS.Rd
+++ b/man/gy_saveRDS.Rd
@@ -24,7 +24,25 @@ gy_readRDS(
 )
 }
 \arguments{
-\item{overwrite}{}
+\item{object}{the object to encrypt}
+
+\item{file}{the filename to which the encrypted object will be saved}
+
+\item{users}{one or more users who will be authorised to decrypt the file}
+
+\item{local_user}{should the local user be able to decrypt the file?}
+
+\item{comment}{a comment to include}
+
+\item{overwrite}{should the file be overwritten, if it exists?}
+
+\item{ascii}{argument passed to saveRDS}
+
+\item{funs}{argument passed to saveRDS}
+
+\item{...}{arguments passed to gy_serialise}
+
+\item{run_custom}{should any custom decryption functions be run automatically?}
 }
 \description{
 Save and read encrypted RDS
diff --git a/man/gy_serialise.Rd b/man/gy_serialise.Rd
index c67942d..3325db7 100644
--- a/man/gy_serialise.Rd
+++ b/man/gy_serialise.Rd
@@ -16,7 +16,13 @@ gy_serialize(object, files = character(0), method = "qs", ...)
 gy_deserialize(object, files = TRUE, ...)
 }
 \arguments{
-\item{overwrite}{}
+\item{object}{the object to encrypt}
+
+\item{files}{external files to serialise (not yet implemented)}
+
+\item{method}{the serialisation method to use (base, qs, or custom)}
+
+\item{...}{arguments passed to the underlying serialisation method}
 }
 \description{
 Serialise and deserialise a list of objects/files
diff --git a/man/gy_setup.Rd b/man/gy_setup.Rd
index 3385fc2..e5addc7 100644
--- a/man/gy_setup.Rd
+++ b/man/gy_setup.Rd
@@ -2,7 +2,7 @@
 % Please edit documentation in R/gy_setup.R
 \name{gy_setup}
 \alias{gy_setup}
-\title{Title}
+\title{Setup a new goldeyene encryption profile}
 \usage{
 gy_setup(
   name = NULL,
@@ -13,6 +13,19 @@ gy_setup(
   silent = FALSE
 )
 }
+\arguments{
+\item{name}{your full name}
+
+\item{email}{your email address}
+
+\item{filename}{the filename to which the profile will be saved}
+
+\item{path}{the path in which to save the profile}
+
+\item{append_Rprofile}{should the R profile file be appended to automatically load this profile when R is restarted?}
+
+\item{silent}{option to suppress output}
+}
 \description{
-Title
+Setup a new goldeyene encryption profile
 }
diff --git a/man/gy_users.Rd b/man/gy_users.Rd
index 1daccf2..a865102 100644
--- a/man/gy_users.Rd
+++ b/man/gy_users.Rd
@@ -2,13 +2,15 @@
 % Please edit documentation in R/gy_users.R
 \name{gy_users}
 \alias{gy_users}
-\title{Title}
+\title{Obtain a list of users for a given group}
 \usage{
 gy_users(group = NULL, refresh = FALSE)
 }
 \arguments{
-\item{refresh}{}
+\item{group}{the group for which to return users (defaults to the active group)}
+
+\item{refresh}{should the list be refreshed from the remote/online location?}
 }
 \description{
-Title
+Obtain a list of users for a given group
 }
diff --git a/man/gy_zip.Rd b/man/gy_zip.Rd
index 51df1c4..2e10ac5 100644
--- a/man/gy_zip.Rd
+++ b/man/gy_zip.Rd
@@ -24,6 +24,10 @@ gy_unzip(
 )
 }
 \arguments{
+\item{input_files}{one or more files to add to the zip archive}
+
+\item{file}{the filename to which the encrypted object will be saved}
+
 \item{compression_level}{compression level to use on a scale of 1-9 (passed to \code{\link[zip]{zip}})}
 
 \item{users}{a character vector of (other) users within your current user group for whom the encrypted file will be decryptable. Alternatively, this can be a vector of paths/urls to public keys, or a mixture of the two.}
@@ -34,7 +38,13 @@ gy_unzip(
 
 \item{funs}{optional additional encryption steps: this must be the output of a call to \code{\link{gy_key_funs}}}
 
-\item{files}{one or more files to add to the zip archive}
+\item{directory}{the directory to which the decrypted/unzipped files will be saved}
+
+\item{unzip}{should the decrypted files also be unzipped?}
+
+\item{overwrite}{should the file be overwritten, if it exists?}
+
+\item{run_custom}{should any custom decryption functions be run automatically?}
 }
 \description{
 Zip and encrypt external files using goldeneye