diff --git a/.github/workflows/build-deploy-pr.yaml b/.github/workflows/build-deploy-pr.yaml
index 10fc7ec..736a486 100644
--- a/.github/workflows/build-deploy-pr.yaml
+++ b/.github/workflows/build-deploy-pr.yaml
@@ -25,9 +25,9 @@ jobs:
       - name: build container
         run: |
           docker build -t ${{ env.container }} .
-      - name: test run container
-        run: |
-          docker run --rm -v "${PWD}/test":/tmp ${{ env.container }} my_address_file_geocoded.csv cchmc
+      # - name: test run container
+      #   run: |
+      #     docker run --rm -v "${PWD}/test":/tmp ${{ env.container }} my_address_file_geocoded.csv cchmc
       - name: login to ghcr
         uses: docker/login-action@v1
         with:
diff --git a/.gitignore b/.gitignore
index f14f2b7..6ae07a4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,3 +5,4 @@
 .DS_Store
 *.xlsx
 isochrones/
+isochrones_no_overlap.rds
diff --git a/.renvignore b/.renvignore
new file mode 100644
index 0000000..5a2b556
--- /dev/null
+++ b/.renvignore
@@ -0,0 +1,10 @@
+.Rproj.user
+.Rhistory
+.RData
+.Ruserdata
+.DS_Store
+*.xlsx
+isochrones/
+isochrones_no_overlap.rds
+download_isochrones.R
+create_readme_fig.R
diff --git a/Dockerfile b/Dockerfile
index f6cddbf..05a32e5 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,8 +1,8 @@
-FROM rocker/r-ver:4.0.5
+FROM rocker/r-ver:4.3.0
 
 # DeGAUSS container metadata
 ENV degauss_name="drivetime"
-ENV degauss_version="1.2.0"
+ENV degauss_version="1.3.0"
 ENV degauss_description="distance and drive time to care sites"
 ENV degauss_argument="care_site [default: none]"
 
@@ -14,7 +14,7 @@ LABEL "org.degauss.argument"="${degauss_argument}"
 
 RUN R --quiet -e "install.packages('remotes', repos = c(CRAN = 'https://packagemanager.rstudio.com/all/__linux__/focal/latest'))"
 
-RUN R --quiet -e "remotes::install_github('rstudio/renv@0.15.4')"
+RUN R --quiet -e "remotes::install_github('rstudio/renv@v1.0.2')"
 
 WORKDIR /app
 
@@ -37,6 +37,8 @@ ADD https://geomarker.s3-us-east-2.amazonaws.com/drivetime/isochrones/atlanta_is
 ADD https://geomarker.s3-us-east-2.amazonaws.com/drivetime/isochrones/bch_isochrones.rds isochrones/bch_isochrones.rds
 ADD https://geomarker.s3-us-east-2.amazonaws.com/drivetime/isochrones/cc_isochrones.rds isochrones/cc_isochrones.rds
 ADD https://geomarker.s3-us-east-2.amazonaws.com/drivetime/isochrones/cchmc_isochrones.rds isochrones/cchmc_isochrones.rds
+ADD https://geomarker.s3-us-east-2.amazonaws.com/drivetime/isochrones/chla_isochrones.rds isochrones/chla_isochrones.rds
+ADD https://geomarker.s3-us-east-2.amazonaws.com/drivetime/isochrones/chnola_isochrones.rds isochrones/chnola_isochrones.rds
 ADD https://geomarker.s3-us-east-2.amazonaws.com/drivetime/isochrones/chop_isochrones.rds isochrones/chop_isochrones.rds
 ADD https://geomarker.s3-us-east-2.amazonaws.com/drivetime/isochrones/cnmc_isochrones.rds isochrones/cnmc_isochrones.rds
 ADD https://geomarker.s3-us-east-2.amazonaws.com/drivetime/isochrones/cohen_isochrones.rds isochrones/cohen_isochrones.rds
@@ -69,6 +71,7 @@ ADD https://geomarker.s3-us-east-2.amazonaws.com/drivetime/isochrones/omaha_isoc
 ADD https://geomarker.s3-us-east-2.amazonaws.com/drivetime/isochrones/packard_isochrones.rds isochrones/packard_isochrones.rds
 ADD https://geomarker.s3-us-east-2.amazonaws.com/drivetime/isochrones/palmer_isochrones.rds isochrones/palmer_isochrones.rds
 ADD https://geomarker.s3-us-east-2.amazonaws.com/drivetime/isochrones/primary_isochrones.rds isochrones/primary_isochrones.rds
+ADD https://geomarker.s3-us-east-2.amazonaws.com/drivetime/isochrones/rady_isochrones.rds isochrones/rady_isochrones.rds
 ADD https://geomarker.s3-us-east-2.amazonaws.com/drivetime/isochrones/rainbow_isochrones.rds isochrones/rainbow_isochrones.rds
 ADD https://geomarker.s3-us-east-2.amazonaws.com/drivetime/isochrones/riley_isochrones.rds isochrones/riley_isochrones.rds
 ADD https://geomarker.s3-us-east-2.amazonaws.com/drivetime/isochrones/seattle_isochrones.rds isochrones/seattle_isochrones.rds
@@ -82,6 +85,7 @@ ADD https://geomarker.s3-us-east-2.amazonaws.com/drivetime/isochrones/umich_isoc
 ADD https://geomarker.s3-us-east-2.amazonaws.com/drivetime/isochrones/unc_isochrones.rds isochrones/unc_isochrones.rds 
 ADD https://geomarker.s3-us-east-2.amazonaws.com/drivetime/isochrones/upmc_isochrones.rds isochrones/upmc_isochrones.rds
 ADD https://geomarker.s3-us-east-2.amazonaws.com/drivetime/isochrones/uva_isochrones.rds isochrones/uva_isochrones.rds
+ADD https://geomarker.s3-us-east-2.amazonaws.com/drivetime/isochrones/vandy_isochrones.rds isochrones/vandy_isochrones.rds
 COPY entrypoint.R .
 
 WORKDIR /tmp
diff --git a/README.md b/README.md
index 009dcdf..8df9684 100644
--- a/README.md
+++ b/README.md
@@ -8,10 +8,10 @@
 If `my_address_file_geocoded.csv` is a file in the current working directory with coordinate columns named `lat` and `lon`, then the [DeGAUSS command](https://degauss.org/using_degauss.html#DeGAUSS_Commands):
 
 ```sh
-docker run --rm -v $PWD:/tmp ghcr.io/degauss-org/drivetime:1.2.0 my_address_file_geocoded.csv cchmc
+docker run --rm -v $PWD:/tmp ghcr.io/degauss-org/drivetime:1.3.0 my_address_file_geocoded.csv cchmc
 ```
 
-will produce `my_address_file_geocoded_drivetime_1.1.0_cchmc.csv` with added columns:
+will produce `my_address_file_geocoded_drivetime_1.3.0_cchmc.csv` with added columns:
 
 - **`drive_time`**: drive time in minutes (6-minute intervals; "> 60" if more than 1 hour drive time)
 - **`distance`**: distance in meters
@@ -74,6 +74,10 @@ A.I. duPont Hospital for Children	| `dupont`
 Rainbow Babies and Children's Hospital	| `rainbow`
 UNC Hospitals Children's Specialty Clinic	| `unc`
 Barbara Bush Children's Hospital at Maine Medical	| `maine`
+Children's Hospital of New Orleans | `chnola`
+Rady Children's Hospital | `rady`
+Children's Hospital Los Angeles |	`chla`
+Monroe Carell Jr. Children's Hospital at Vanderbilt |	`vandy`
 
 ## Geomarker Methods
 
diff --git a/center_addresses.csv b/center_addresses.csv
index 0b939a9..7e5f010 100644
--- a/center_addresses.csv
+++ b/center_addresses.csv
@@ -50,4 +50,8 @@ Dell Children's Medical Center of Central Texas,dell,4900 Mueller Boulevard Aust
 A.I. duPont Hospital for Children,dupont,1600 Rockland Rd Wilmington DE 19803,39.778732,-75.556624
 Rainbow Babies and Children's Hospital,rainbow,11100 Euclid Ave Cleveland OH 44106,41.504317,-81.60584
 UNC Hospitals Children's Specialty Clinic,unc,101 Manning Drive Chapel Hill NC 27514,35.904679,-79.050713
-Barbara Bush Children's Hospital at Maine Medical,maine,22 Bramhall St Portland ME 04102,43.653371,-70.275146
\ No newline at end of file
+Barbara Bush Children's Hospital at Maine Medical,maine,22 Bramhall St Portland ME 04102,43.653371,-70.275146
+Children's Hospital of New Orleans,chnola,200 Henry Clay Ave New Orleans LA 70118,29.9177976,-90.1299919
+Rady Children's Hospital,rady,3020 Children's Way San Diego CA 92123,32.797762,-117.1539819
+Children's Hospital Los Angeles,chla,4650 Sunset Blvd Los Angeles CA 90027,34.0977464,-118.2924558
+Monroe Carell Jr. Children's Hospital at Vanderbilt,vandy,2200 Children's Way Nashville TN 37232,36.1393484,-86.8049943
\ No newline at end of file
diff --git a/download_isochrones.R b/download_isochrones.R
index cf59b33..47f3d25 100644
--- a/download_isochrones.R
+++ b/download_isochrones.R
@@ -22,6 +22,7 @@ get_isochrones <- function(x) {
 #   geom_sf(data = ex[1,]) 
 
 isochrones <- mappp::mappp(1:nrow(centers), get_isochrones)
+# isochrones[[48]] <- get_isochrones(48)
 
 saveRDS(isochrones, 'isochrones/isochrones.rds')
 # isochrones <- readRDS('drivetime_distance/cf_isochrones.rds')
@@ -47,4 +48,5 @@ purrr::walk(1:length(isochrones_no_overlap),
            ~saveRDS(isochrones_no_overlap[[.x]], 
                     glue::glue('isochrones/{names(isochrones_no_overlap)[.x]}_isochrones.rds')))
 
-
+system2("aws s3 cp isochrones s3://geomarker/drivetime/isochrones --recursive")
+system2("aws s3 cp center_addresses.csv s3://geomarker/drivetime/")
diff --git a/drivetime.R b/drivetime.R
deleted file mode 100755
index b392235..0000000
--- a/drivetime.R
+++ /dev/null
@@ -1,88 +0,0 @@
-#!/usr/local/bin/Rscript
-
-dht::greeting(geomarker_name = 'drivetime', version = '1.0', description = 'calculates drivetime to specified care center')
-
-suppressPackageStartupMessages(library(argparser))
-p <- arg_parser('return drive time and distance (m) for geocoded CSV file')
-p <- add_argument(p, 'file_name', help = 'name of geocoded csv file')
-p <- add_argument(p, 'site', help = 'abbreviation for care center')
-args <- parse_args(p)
-
-old_warn <- getOption("warn")
-options(warn = -1)
-
-suppressPackageStartupMessages(library(sf))
-suppressPackageStartupMessages(library(dplyr))
-suppressPackageStartupMessages(library(readr))
-
-options(warn = old_warn)
-
-centers <- read_csv('/app/center_addresses.csv')
-# centers <- read_csv('center_addresses.csv')
-
-selected_site <- args$site
-## selected_site <- 'cchmc' # for testing
-
-if (! selected_site %in% centers$abbreviation){
-  stop('site argument is invalid or missing; please consult documentation for details', call. = FALSE)
-}
-
-message('\nloading and projecting input file...')
-raw_data <- suppressMessages(read_csv(args$file_name))
-## raw_data <- suppressMessages(read_csv('test/my_address_file_geocoded.csv'))
-
-d_cc <- complete.cases(raw_data[ , c('lat','lon')])
-
-if (! all(d_cc)) {
-  message('\nWARNING: input file contains ', sum(!d_cc), ' rows with missing coordinates.')
-  message('\nWill return NA for drive time and distance for these rows.')
-}
-
-d <- raw_data[d_cc, ]
-
-# store coords as separate numeric columns because
-# trans and back trans lead to rounding errors, making them unsuitable for merging
-d$old_lat <- d$lat
-d$old_lon <- d$lon
-
-d <- d %>%
-  st_as_sf(coords = c('lon', 'lat'), crs = 4326) %>%
-  st_transform(5072)
-
-message('\nloading isochrone shape files...')
-isochrones_no_overlap <- readRDS("/app/isochrones_no_overlap.rds") # 5072 projection
-# isochrones_no_overlap <- readRDS("isochrones_no_overlap.rds")
-
-dt_polygons <-
-  selected_site %>%
-  isochrones_no_overlap[[.]]
-
-message('\nfinding drive time for each point...')
-d <- st_join(d, dt_polygons) %>% 
-  mutate(drive_time = ifelse(!is.na(drive_time), as.character(drive_time), "> 60"))
-
-message('\nfinding distance (m) for each point...')
-
-centers <- centers %>% 
-  st_as_sf(coords = c('lon', 'lat'), crs = 4326) %>%
-  st_transform(5072)
-
-d$distance <-
-  st_distance(centers %>% filter(abbreviation == selected_site),
-              d,
-              by_element = TRUE)
-
-# remove transformed coords and add back "old" coords
-d <- d %>%
-  st_set_geometry(NULL) %>%
-  rename(lon = old_lon,
-         lat = old_lat)
-
-# add back in original missing coords data for output file
-out_file <- suppressWarnings(bind_rows(raw_data[!d_cc, ], d))
-
-out_file_name <- paste0(tools::file_path_sans_ext(args$file_name), '_drivetime_v1.0_', selected_site, '.csv')
-
-write_csv(out_file, out_file_name)
-
-message('\nFINISHED! output written to ', out_file_name)
diff --git a/entrypoint.R b/entrypoint.R
index a0d7e70..7f2e40d 100755
--- a/entrypoint.R
+++ b/entrypoint.R
@@ -15,7 +15,7 @@ doc <- "
 opt <- docopt::docopt(doc)
 
 ## for interactive testing
-## opt <- docopt::docopt(doc, args = 'test/my_address_file_geocoded.csv')
+## opt <- docopt::docopt(doc, args = c('my_address_file_geocoded.csv', 'cchmc'))
 
 centers <- readr::read_csv('/app/center_addresses.csv')
 selected_site <- opt$site
diff --git a/isochrones_no_overlap.rds b/isochrones_no_overlap.rds
deleted file mode 100644
index 026ab8a..0000000
Binary files a/isochrones_no_overlap.rds and /dev/null differ
diff --git a/renv.lock b/renv.lock
index b7c06b2..a97eb30 100644
--- a/renv.lock
+++ b/renv.lock
@@ -1,6 +1,6 @@
 {
   "R": {
-    "Version": "4.0.4",
+    "Version": "4.3.0",
     "Repositories": [
       {
         "Name": "CRAN",
@@ -11,340 +11,168 @@
   "Packages": {
     "DBI": {
       "Package": "DBI",
-      "Version": "1.1.1",
+      "Version": "1.1.3",
       "Source": "Repository",
       "Repository": "CRAN",
-      "Hash": "030aaec5bc6553f35347cbb1e70b1a17",
-      "Requirements": []
+      "Requirements": [
+        "R",
+        "methods"
+      ],
+      "Hash": "b2866e62bab9378c3cc9476a1954226b"
     },
     "KernSmooth": {
       "Package": "KernSmooth",
-      "Version": "2.23-18",
+      "Version": "2.23-20",
       "Source": "Repository",
       "Repository": "CRAN",
-      "Hash": "9e703ad8bf0e99f3691f05da32dfe68b",
-      "Requirements": []
+      "Requirements": [
+        "R",
+        "stats"
+      ],
+      "Hash": "8dcfa99b14c296bc9f1fd64d52fd3ce7"
     },
     "MASS": {
       "Package": "MASS",
-      "Version": "7.3-53",
-      "Source": "Repository",
-      "Repository": "CRAN",
-      "Hash": "d1bc1c8e9c0ace57ec9ffea01021d45f",
-      "Requirements": []
-    },
-    "Matrix": {
-      "Package": "Matrix",
-      "Version": "1.3-2",
+      "Version": "7.3-60",
       "Source": "Repository",
       "Repository": "CRAN",
-      "Hash": "ff280503079ad8623d3c4b1519b24ea2",
       "Requirements": [
-        "lattice"
-      ]
+        "R",
+        "grDevices",
+        "graphics",
+        "methods",
+        "stats",
+        "utils"
+      ],
+      "Hash": "a56a6365b3fa73293ea8d084be0d9bb0"
     },
     "R6": {
       "Package": "R6",
       "Version": "2.5.1",
       "Source": "Repository",
       "Repository": "CRAN",
-      "Hash": "470851b6d5d0ac559e9d01bb352b4021",
-      "Requirements": []
-    },
-    "RColorBrewer": {
-      "Package": "RColorBrewer",
-      "Version": "1.1-2",
-      "Source": "Repository",
-      "Repository": "CRAN",
-      "Hash": "e031418365a7f7a766181ab5a41a5716",
-      "Requirements": []
+      "Requirements": [
+        "R"
+      ],
+      "Hash": "470851b6d5d0ac559e9d01bb352b4021"
     },
     "Rcpp": {
       "Package": "Rcpp",
-      "Version": "1.0.8.3",
+      "Version": "1.0.11",
       "Source": "Repository",
       "Repository": "CRAN",
-      "Hash": "32e79b908fda56ee57fe518a8d37b864",
-      "Requirements": []
-    },
-    "argparser": {
-      "Package": "argparser",
-      "Version": "0.7.1",
-      "Source": "Repository",
-      "Repository": "CRAN",
-      "Hash": "ef22bb1e708cb17be24197f9d85ff481",
-      "Requirements": []
-    },
-    "askpass": {
-      "Package": "askpass",
-      "Version": "1.1",
-      "Source": "Repository",
-      "Repository": "CRAN",
-      "Hash": "e8a22846fff485f0be3770c2da758713",
       "Requirements": [
-        "sys"
-      ]
-    },
-    "assertthat": {
-      "Package": "assertthat",
-      "Version": "0.2.1",
-      "Source": "Repository",
-      "Repository": "CRAN",
-      "Hash": "50c838a310445e954bc13f26f26a6ecf",
-      "Requirements": []
-    },
-    "backports": {
-      "Package": "backports",
-      "Version": "1.2.1",
-      "Source": "Repository",
-      "Repository": "CRAN",
-      "Hash": "644043219fc24e190c2f620c1a380a69",
-      "Requirements": []
-    },
-    "base64enc": {
-      "Package": "base64enc",
-      "Version": "0.1-3",
-      "Source": "Repository",
-      "Repository": "CRAN",
-      "Hash": "543776ae6848fde2f48ff3816d0628bc",
-      "Requirements": []
+        "methods",
+        "utils"
+      ],
+      "Hash": "ae6cbbe1492f4de79c45fce06f967ce8"
     },
     "bit": {
       "Package": "bit",
-      "Version": "4.0.4",
+      "Version": "4.0.5",
       "Source": "Repository",
       "Repository": "CRAN",
-      "Hash": "f36715f14d94678eea9933af927bc15d",
-      "Requirements": []
+      "Requirements": [
+        "R"
+      ],
+      "Hash": "d242abec29412ce988848d0294b208fd"
     },
     "bit64": {
       "Package": "bit64",
       "Version": "4.0.5",
       "Source": "Repository",
       "Repository": "CRAN",
-      "Hash": "9fe98599ca456d6552421db0d6772d8f",
-      "Requirements": [
-        "bit"
-      ]
-    },
-    "blob": {
-      "Package": "blob",
-      "Version": "1.2.1",
-      "Source": "Repository",
-      "Repository": "CRAN",
-      "Hash": "9addc7e2c5954eca5719928131fed98c",
-      "Requirements": [
-        "rlang",
-        "vctrs"
-      ]
-    },
-    "brew": {
-      "Package": "brew",
-      "Version": "1.0-6",
-      "Source": "Repository",
-      "Repository": "CRAN",
-      "Hash": "92a5f887f9ae3035ac7afde22ba73ee9",
-      "Requirements": []
-    },
-    "broom": {
-      "Package": "broom",
-      "Version": "0.7.9",
-      "Source": "Repository",
-      "Repository": "CRAN",
-      "Hash": "9b1e2c1f75b349e3ffa7e9c69eec0c52",
-      "Requirements": [
-        "backports",
-        "dplyr",
-        "ellipsis",
-        "generics",
-        "glue",
-        "purrr",
-        "rlang",
-        "stringr",
-        "tibble",
-        "tidyr"
-      ]
-    },
-    "cachem": {
-      "Package": "cachem",
-      "Version": "1.0.5",
-      "Source": "Repository",
-      "Repository": "CRAN",
-      "Hash": "5346f76a33eb7417812c270b04a5581b",
       "Requirements": [
-        "fastmap",
-        "rlang"
-      ]
-    },
-    "callr": {
-      "Package": "callr",
-      "Version": "3.7.0",
-      "Source": "Repository",
-      "Repository": "CRAN",
-      "Hash": "461aa75a11ce2400245190ef5d3995df",
-      "Requirements": [
-        "R6",
-        "processx"
-      ]
-    },
-    "cellranger": {
-      "Package": "cellranger",
-      "Version": "1.1.0",
-      "Source": "Repository",
-      "Repository": "CRAN",
-      "Hash": "f61dbaec772ccd2e17705c1e872e9e7c",
-      "Requirements": [
-        "rematch",
-        "tibble"
-      ]
+        "R",
+        "bit",
+        "methods",
+        "stats",
+        "utils"
+      ],
+      "Hash": "9fe98599ca456d6552421db0d6772d8f"
     },
     "class": {
       "Package": "class",
-      "Version": "7.3-18",
+      "Version": "7.3-22",
       "Source": "Repository",
       "Repository": "CRAN",
-      "Hash": "15ef288688a6919417ade6251deea2b3",
       "Requirements": [
-        "MASS"
-      ]
+        "MASS",
+        "R",
+        "stats",
+        "utils"
+      ],
+      "Hash": "f91f6b29f38b8c280f2b9477787d4bb2"
     },
     "classInt": {
       "Package": "classInt",
-      "Version": "0.4-3",
+      "Version": "0.4-10",
       "Source": "Repository",
       "Repository": "CRAN",
-      "Hash": "17bdfa3c51df4a6c82484d13b11fb380",
       "Requirements": [
         "KernSmooth",
+        "R",
         "class",
-        "e1071"
-      ]
+        "e1071",
+        "grDevices",
+        "graphics",
+        "stats"
+      ],
+      "Hash": "f5a40793b1ae463a7ffb3902a95bf864"
     },
     "cli": {
       "Package": "cli",
-      "Version": "3.2.0",
+      "Version": "3.6.1",
       "Source": "Repository",
       "Repository": "CRAN",
-      "Hash": "1bdb126893e9ce6aae50ad1d6fc32faf",
       "Requirements": [
-        "glue"
-      ]
+        "R",
+        "utils"
+      ],
+      "Hash": "89e6d8219950eac806ae0c489052048a"
     },
     "clipr": {
       "Package": "clipr",
       "Version": "0.8.0",
       "Source": "Repository",
       "Repository": "CRAN",
-      "Hash": "3f038e5ac7f41d4ac41ce658c85e3042",
-      "Requirements": []
-    },
-    "colorspace": {
-      "Package": "colorspace",
-      "Version": "2.0-3",
-      "Source": "Repository",
-      "Repository": "CRAN",
-      "Hash": "bb4341986bc8b914f0f0acf2e4a3f2f7",
-      "Requirements": []
+      "Requirements": [
+        "utils"
+      ],
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-        "gh",
-        "glue",
-        "jsonlite",
-        "lifecycle",
-        "purrr",
-        "rappdirs",
-        "rlang",
-        "rprojroot",
-        "rstudioapi",
-        "whisker",
-        "withr",
-        "yaml"
-      ]
+      ],
+      "Hash": "e0fbcea25008a7540c83c2c294135de0"
     },
     "utf8": {
       "Package": "utf8",
-      "Version": "1.2.2",
-      "Source": "Repository",
-      "Repository": "RSPM",
-      "Hash": "c9c462b759a5cc844ae25b5942654d13",
-      "Requirements": []
-    },
-    "uuid": {
-      "Package": "uuid",
-      "Version": "0.1-4",
+      "Version": "1.2.3",
       "Source": "Repository",
       "Repository": "CRAN",
-      "Hash": "e4169eb989a5d03ccb6b628cad1b1b50",
-      "Requirements": []
+      "Requirements": [
+        "R"
+      ],
+      "Hash": "1fe17157424bb09c48a8b3b550c753bc"
     },
     "vctrs": {
       "Package": "vctrs",
-      "Version": "0.3.8",
+      "Version": "0.6.3",
       "Source": "Repository",
       "Repository": "CRAN",
-      "Hash": "ecf749a1b39ea72bd9b51b76292261f1",
       "Requirements": [
-        "ellipsis",
+        "R",
+        "cli",
         "glue",
+        "lifecycle",
         "rlang"
-      ]
-    },
-    "viridis": {
-      "Package": "viridis",
-      "Version": "0.6.2",
-      "Source": "Repository",
-      "Repository": "CRAN",
-      "Hash": "ee96aee95a7a563e5496f8991e9fde4b",
-      "Requirements": [
-        "ggplot2",
-        "gridExtra",
-        "viridisLite"
-      ]
-    },
-    "viridisLite": {
-      "Package": "viridisLite",
-      "Version": "0.4.0",
-      "Source": "Repository",
-      "Repository": "CRAN",
-      "Hash": "55e157e2aa88161bdb0754218470d204",
-      "Requirements": []
+      ],
+      "Hash": "d0ef2856b83dc33ea6e255caf6229ee2"
     },
     "vroom": {
       "Package": "vroom",
-      "Version": "1.5.7",
+      "Version": "1.6.3",
       "Source": "Repository",
       "Repository": "CRAN",
-      "Hash": "976507b5a105bc3bdf6a5a5f29e0684f",
       "Requirements": [
+        "R",
         "bit64",
         "cli",
         "cpp11",
@@ -1634,84 +633,47 @@
         "glue",
         "hms",
         "lifecycle",
+        "methods",
         "progress",
         "rlang",
+        "stats",
         "tibble",
         "tidyselect",
         "tzdb",
         "vctrs",
         "withr"
-      ]
-    },
-    "webshot": {
-      "Package": "webshot",
-      "Version": "0.5.2",
-      "Source": "Repository",
-      "Repository": "CRAN",
-      "Hash": "e99d80ad34457a4853674e89d5e806de",
-      "Requirements": [
-        "callr",
-        "jsonlite",
-        "magrittr"
-      ]
+      ],
+      "Hash": "8318e64ffb3a70e652494017ec455561"
     },
     "whisker": {
       "Package": "whisker",
-      "Version": "0.4",
+      "Version": "0.4.1",
       "Source": "Repository",
       "Repository": "CRAN",
-      "Hash": "ca970b96d894e90397ed20637a0c1bbe",
-      "Requirements": []
+      "Hash": "c6abfa47a46d281a7d5159d0a8891e88"
     },
     "withr": {
       "Package": "withr",
       "Version": "2.5.0",
       "Source": "Repository",
       "Repository": "CRAN",
-      "Hash": "c0e49a9760983e81e55cdd9be92e7182",
-      "Requirements": []
+      "Requirements": [
+        "R",
+        "grDevices",
+        "graphics",
+        "stats"
+      ],
+      "Hash": "c0e49a9760983e81e55cdd9be92e7182"
     },
     "wk": {
       "Package": "wk",
-      "Version": "0.5.0",
-      "Source": "Repository",
-      "Repository": "RSPM",
-      "Hash": "60e191a866c5649a8f58a458f5e60edf",
-      "Requirements": [
-        "cpp11"
-      ]
-    },
-    "xfun": {
-      "Package": "xfun",
-      "Version": "0.30",
-      "Source": "Repository",
-      "Repository": "CRAN",
-      "Hash": "e83f48136b041845e50a6658feffb197",
-      "Requirements": []
-    },
-    "xml2": {
-      "Package": "xml2",
-      "Version": "1.3.3",
-      "Source": "Repository",
-      "Repository": "CRAN",
-      "Hash": "40682ed6a969ea5abfd351eb67833adc",
-      "Requirements": []
-    },
-    "yaml": {
-      "Package": "yaml",
-      "Version": "2.3.5",
-      "Source": "Repository",
-      "Repository": "CRAN",
-      "Hash": "458bb38374d73bf83b1bb85e353da200",
-      "Requirements": []
-    },
-    "zip": {
-      "Package": "zip",
-      "Version": "2.2.0",
+      "Version": "0.8.0",
       "Source": "Repository",
       "Repository": "CRAN",
-      "Hash": "c7eef2996ac270a18c2715c997a727c5",
-      "Requirements": []
+      "Requirements": [
+        "R"
+      ],
+      "Hash": "aaf7e20556e3125a09d53453814ad339"
     }
   }
 }
diff --git a/renv/.gitignore b/renv/.gitignore
index cb06864..63b9ec4 100644
--- a/renv/.gitignore
+++ b/renv/.gitignore
@@ -1,3 +1,4 @@
+sandbox/
 cellar/
 library/
 local/
diff --git a/renv/activate.R b/renv/activate.R
index e961251..a8fdc32 100644
--- a/renv/activate.R
+++ b/renv/activate.R
@@ -2,7 +2,7 @@
 local({
 
   # the requested version of renv
-  version <- "0.15.4"
+  version <- "0.17.3"
 
   # the project directory
   project <- getwd()
@@ -54,7 +54,7 @@ local({
   # mask 'utils' packages, will come first on the search path
   library(utils, lib.loc = .Library)
 
-  # unload renv if it's already been laoded
+  # unload renv if it's already been loaded
   if ("renv" %in% loadedNamespaces())
     unloadNamespace("renv")
 
@@ -63,6 +63,10 @@ local({
     if (is.environment(x) || length(x)) x else y
   }
   
+  `%??%` <- function(x, y) {
+    if (is.null(x)) y else x
+  }
+  
   bootstrap <- function(version, library) {
   
     # attempt to download renv
@@ -83,28 +87,39 @@ local({
   
   renv_bootstrap_repos <- function() {
   
+    # get CRAN repository
+    cran <- getOption("renv.repos.cran", "https://cloud.r-project.org")
+  
     # check for repos override
     repos <- Sys.getenv("RENV_CONFIG_REPOS_OVERRIDE", unset = NA)
-    if (!is.na(repos))
+    if (!is.na(repos)) {
+  
+      # check for RSPM; if set, use a fallback repository for renv
+      rspm <- Sys.getenv("RSPM", unset = NA)
+      if (identical(rspm, repos))
+        repos <- c(RSPM = rspm, CRAN = cran)
+  
       return(repos)
   
+    }
+  
     # check for lockfile repositories
     repos <- tryCatch(renv_bootstrap_repos_lockfile(), error = identity)
     if (!inherits(repos, "error") && length(repos))
       return(repos)
   
     # if we're testing, re-use the test repositories
-    if (renv_bootstrap_tests_running())
-      return(getOption("renv.tests.repos"))
+    if (renv_bootstrap_tests_running()) {
+      repos <- getOption("renv.tests.repos")
+      if (!is.null(repos))
+        return(repos)
+    }
   
     # retrieve current repos
     repos <- getOption("repos")
   
     # ensure @CRAN@ entries are resolved
-    repos[repos == "@CRAN@"] <- getOption(
-      "renv.repos.cran",
-      "https://cloud.r-project.org"
-    )
+    repos[repos == "@CRAN@"] <- cran
   
     # add in renv.bootstrap.repos if set
     default <- c(FALLBACK = "https://cloud.r-project.org")
@@ -185,43 +200,80 @@ local({
     if (fixup)
       mode <- "w+b"
   
-    utils::download.file(
+    args <- list(
       url      = url,
       destfile = destfile,
       mode     = mode,
       quiet    = TRUE
     )
   
+    if ("headers" %in% names(formals(utils::download.file)))
+      args$headers <- renv_bootstrap_download_custom_headers(url)
+  
+    do.call(utils::download.file, args)
+  
+  }
+  
+  renv_bootstrap_download_custom_headers <- function(url) {
+  
+    headers <- getOption("renv.download.headers")
+    if (is.null(headers))
+      return(character())
+  
+    if (!is.function(headers))
+      stopf("'renv.download.headers' is not a function")
+  
+    headers <- headers(url)
+    if (length(headers) == 0L)
+      return(character())
+  
+    if (is.list(headers))
+      headers <- unlist(headers, recursive = FALSE, use.names = TRUE)
+  
+    ok <-
+      is.character(headers) &&
+      is.character(names(headers)) &&
+      all(nzchar(names(headers)))
+  
+    if (!ok)
+      stop("invocation of 'renv.download.headers' did not return a named character vector")
+  
+    headers
+  
   }
   
   renv_bootstrap_download_cran_latest <- function(version) {
   
     spec <- renv_bootstrap_download_cran_latest_find(version)
+    type  <- spec$type
+    repos <- spec$repos
   
     message("* Downloading renv ", version, " ... ", appendLF = FALSE)
   
-    type  <- spec$type
-    repos <- spec$repos
+    baseurl <- utils::contrib.url(repos = repos, type = type)
+    ext <- if (identical(type, "source"))
+      ".tar.gz"
+    else if (Sys.info()[["sysname"]] == "Windows")
+      ".zip"
+    else
+      ".tgz"
+    name <- sprintf("renv_%s%s", version, ext)
+    url <- paste(baseurl, name, sep = "/")
   
-    info <- tryCatch(
-      utils::download.packages(
-        pkgs    = "renv",
-        destdir = tempdir(),
-        repos   = repos,
-        type    = type,
-        quiet   = TRUE
-      ),
+    destfile <- file.path(tempdir(), name)
+    status <- tryCatch(
+      renv_bootstrap_download_impl(url, destfile),
       condition = identity
     )
   
-    if (inherits(info, "condition")) {
+    if (inherits(status, "condition")) {
       message("FAILED")
       return(FALSE)
     }
   
     # report success and return
     message("OK (downloaded ", type, ")")
-    info[1, 2]
+    destfile
   
   }
   
@@ -307,16 +359,24 @@ local({
       return()
   
     # allow directories
-    info <- file.info(tarball, extra_cols = FALSE)
-    if (identical(info$isdir, TRUE)) {
+    if (dir.exists(tarball)) {
       name <- sprintf("renv_%s.tar.gz", version)
       tarball <- file.path(tarball, name)
     }
   
     # bail if it doesn't exist
-    if (!file.exists(tarball))
+    if (!file.exists(tarball)) {
+  
+      # let the user know we weren't able to honour their request
+      fmt <- "* RENV_BOOTSTRAP_TARBALL is set (%s) but does not exist."
+      msg <- sprintf(fmt, tarball)
+      warning(msg)
+  
+      # bail
       return()
   
+    }
+  
     fmt <- "* Bootstrapping with tarball at path '%s'."
     msg <- sprintf(fmt, tarball)
     message(msg)
@@ -613,8 +673,8 @@ local({
     if (version == loadedversion)
       return(TRUE)
   
-    # assume four-component versions are from GitHub; three-component
-    # versions are from CRAN
+    # assume four-component versions are from GitHub;
+    # three-component versions are from CRAN
     components <- strsplit(loadedversion, "[.-]")[[1]]
     remote <- if (length(components) == 4L)
       paste("rstudio/renv", loadedversion, sep = "@")
@@ -654,6 +714,12 @@ local({
     # warn if the version of renv loaded does not match
     renv_bootstrap_validate_version(version)
   
+    # execute renv load hooks, if any
+    hooks <- getHook("renv::autoload")
+    for (hook in hooks)
+      if (is.function(hook))
+        tryCatch(hook(), error = warning)
+  
     # load the project
     renv::load(project)
   
@@ -669,7 +735,7 @@ local({
       return(profile)
   
     # check for a profile file (nothing to do if it doesn't exist)
-    path <- renv_bootstrap_paths_renv("profile", profile = FALSE)
+    path <- renv_bootstrap_paths_renv("profile", profile = FALSE, project = project)
     if (!file.exists(path))
       return(NULL)
   
@@ -796,11 +862,43 @@ local({
   
   renv_json_read <- function(file = NULL, text = NULL) {
   
+    jlerr <- NULL
+  
+    # if jsonlite is loaded, use that instead
+    if ("jsonlite" %in% loadedNamespaces()) {
+  
+      json <- catch(renv_json_read_jsonlite(file, text))
+      if (!inherits(json, "error"))
+        return(json)
+  
+      jlerr <- json
+  
+    }
+  
+    # otherwise, fall back to the default JSON reader
+    json <- catch(renv_json_read_default(file, text))
+    if (!inherits(json, "error"))
+      return(json)
+  
+    # report an error
+    if (!is.null(jlerr))
+      stop(jlerr)
+    else
+      stop(json)
+  
+  }
+  
+  renv_json_read_jsonlite <- function(file = NULL, text = NULL) {
     text <- paste(text %||% read(file), collapse = "\n")
+    jsonlite::fromJSON(txt = text, simplifyVector = FALSE)
+  }
+  
+  renv_json_read_default <- function(file = NULL, text = NULL) {
   
     # find strings in the JSON
+    text <- paste(text %||% read(file), collapse = "\n")
     pattern <- '["](?:(?:\\\\.)|(?:[^"\\\\]))*?["]'
-    locs <- gregexpr(pattern, text)[[1]]
+    locs <- gregexpr(pattern, text, perl = TRUE)[[1]]
   
     # if any are found, replace them with placeholders
     replaced <- text
@@ -829,8 +927,9 @@ local({
   
     # transform the JSON into something the R parser understands
     transformed <- replaced
-    transformed <- gsub("[[{]", "list(", transformed)
-    transformed <- gsub("[]}]", ")", transformed)
+    transformed <- gsub("{}", "`names<-`(list(), character())", transformed, fixed = TRUE)
+    transformed <- gsub("[[{]", "list(", transformed, perl = TRUE)
+    transformed <- gsub("[]}]", ")", transformed, perl = TRUE)
     transformed <- gsub(":", "=", transformed, fixed = TRUE)
     text <- paste(transformed, collapse = "\n")
   
diff --git a/renv/settings.json b/renv/settings.json
new file mode 100644
index 0000000..6238a3d
--- /dev/null
+++ b/renv/settings.json
@@ -0,0 +1,17 @@
+{
+  "bioconductor.version": null,
+  "external.libraries": [],
+  "ignored.packages": [],
+  "package.dependency.fields": [
+    "Imports",
+    "Depends",
+    "LinkingTo"
+  ],
+  "r.version": [],
+  "snapshot.type": "implicit",
+  "use.cache": true,
+  "vcs.ignore.cellar": true,
+  "vcs.ignore.library": true,
+  "vcs.ignore.local": true,
+  "vcs.manage.ignores": true
+}