diff --git a/.github/workflows/hook-dependencies-upate.yml b/.github/workflows/hook-dependencies-upate.yml
index 26226c6de..6bc85b172 100644
--- a/.github/workflows/hook-dependencies-upate.yml
+++ b/.github/workflows/hook-dependencies-upate.yml
@@ -53,7 +53,7 @@ jobs:
               "httr" # lintr -> httr  -> curl -> libcurl, but seems to give no erorr on
               # loading lintr, plus https://github.com/jimhester/lintr/issues/861
             )
-            out <- c(out, "roxygen2", "spelling", "styler", "pkgload", "lintr", "knitr", "git2r", "digest", "desc")
+            out <- c(out, "roxygen2", "spelling", "styler", "pkgload", "lintr", "knitr", "git2r", "desc")
             out <- setdiff(c(unique(c(out, deps[deps$type == "Imports", ]$package))), dont)
             out <- names(renv:::renv_package_dependencies(out))
             return(out)
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 0a2ff7f56..801be0ad6 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -17,7 +17,6 @@ repos:
     -   id: roxygenize
         additional_dependencies:
         -    desc@1.3.0
-        -    digest@0.6.27
         -    docopt@0.7.1
         -    fs@1.5.0
         -    git2r@0.28.0
diff --git a/DESCRIPTION b/DESCRIPTION
index f340a3074..a3342e407 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -12,22 +12,21 @@ License: GPL-3
 URL: https://lorenzwalthert.github.io/precommit/,
     https://github.com/lorenzwalthert/precommit
 Imports:
-    R.cache,
     cli,
-    docopt (>= 0.7.1),
     fs,
     here,
     magrittr,
     purrr,
+    R.cache,
     rlang,
     rprojroot,
     rstudioapi,
-    tibble,
     withr,
     yaml
 Suggests: 
     desc,
     digest,
+    docopt (>= 0.7.1),
     git2r,
     glue,
     knitr,
@@ -40,6 +39,7 @@ Suggests:
     spelling,
     styler,
     testthat (>= 2.1.0),
+    tibble,
     usethis (>= 2.0.0)
 VignetteBuilder: 
     knitr
@@ -49,3 +49,4 @@ Roxygen: list(markdown = TRUE, roclets = c( "rd", "namespace", "collate",
     warning("Please install r-lib/pkgapi to make sure the file API is kept
     up to date"); NULL} ) )
 RoxygenNote: 7.1.2
+SystemRequirements: git
diff --git a/R/precommit-package.R b/R/precommit-package.R
index a78198163..2730318ad 100644
--- a/R/precommit-package.R
+++ b/R/precommit-package.R
@@ -21,3 +21,9 @@ if (getRversion() >= "2.15.1") {
     NULL
   ))
 }
+
+if (FALSE) {
+  # {here} is only used as a dependency for default arguments.
+  # this is to avoid a false positive CRAN note.
+  here::here
+}
diff --git a/R/testing.R b/R/testing.R
index de1493bf0..6684077f5 100644
--- a/R/testing.R
+++ b/R/testing.R
@@ -141,7 +141,7 @@ hook_state_create <- function(tempdir,
   files <- fs::path_rel(path_candidate_temp, tempdir)
   # https://stat.ethz.ch/pipermail/r-devel/2018-February/075507.html
   system2(paste0(Sys.getenv("R_HOME"), "/bin/Rscript"),
-    args = c(path_executable, cmd_args, files),
+    args = as.character(c(path_executable, cmd_args, files)),
     stderr = path_stderr, stdout = path_stdout, env = env
   )
 }
diff --git a/R/utils.R b/R/utils.R
index 6b0ea84ab..be30b3f89 100644
--- a/R/utils.R
+++ b/R/utils.R
@@ -99,3 +99,7 @@ rev_read <- function(path = ".pre-commit-config.yaml", repo = hooks_repo) {
 rev_as_pkg_version <- function(rev) {
   package_version(gsub("^v", "", rev))
 }
+
+has_git <- function() {
+  nzchar(Sys.which("git"))
+}
diff --git a/inst/WORDLIST b/inst/WORDLIST
index c44f28e5f..19af53a27 100644
--- a/inst/WORDLIST
+++ b/inst/WORDLIST
@@ -188,6 +188,7 @@ styler
 sublicenses
 Sublicensing
 Sys
+SystemRequirements
 tcltk
 tempfile
 testthat
diff --git a/inst/hooks/exported/readme-rmd-rendered.R b/inst/hooks/exported/readme-rmd-rendered.R
index 7fd8514a5..14ef54ed1 100644
--- a/inst/hooks/exported/readme-rmd-rendered.R
+++ b/inst/hooks/exported/readme-rmd-rendered.R
@@ -3,7 +3,9 @@ if (file.exists("README.Rmd") & file.exists("README.md")) {
   if (file.info("README.md")$mtime < file.info("README.Rmd")$mtime) {
     rlang::abort("README.md is out of date; please re-knit README.Rmd.")
   }
-
+  if (!nzchar(Sys.which("git"))) {
+    rlang::abort("git not found on `$PATH`, hook can't be ran.")
+  }
   file_names_staged <- system2(
     "git", c("diff --cached --name-only"),
     stdout = TRUE
diff --git a/renv.lock b/renv.lock
index 56e3918d2..d8ba175c9 100644
--- a/renv.lock
+++ b/renv.lock
@@ -13,77 +13,77 @@
       "Package": "R.cache",
       "Version": "0.15.0",
       "Source": "Repository",
-      "Repository": "CRAN",
+      "Repository": "RSPM",
       "Hash": "e92a8ea8388c47c82ed8aa435ed3be50"
     },
     "R.methodsS3": {
       "Package": "R.methodsS3",
       "Version": "1.8.1",
       "Source": "Repository",
-      "Repository": "CRAN",
+      "Repository": "RSPM",
       "Hash": "4bf6453323755202d5909697b6f7c109"
     },
     "R.oo": {
       "Package": "R.oo",
       "Version": "1.24.0",
       "Source": "Repository",
-      "Repository": "CRAN",
+      "Repository": "RSPM",
       "Hash": "5709328352717e2f0a9c012be8a97554"
     },
     "R.utils": {
       "Package": "R.utils",
       "Version": "2.11.0",
       "Source": "Repository",
-      "Repository": "CRAN",
+      "Repository": "RSPM",
       "Hash": "a7ecb8e60815c7a18648e84cd121b23a"
     },
     "R6": {
       "Package": "R6",
       "Version": "2.5.1",
       "Source": "Repository",
-      "Repository": "CRAN",
+      "Repository": "RSPM",
       "Hash": "470851b6d5d0ac559e9d01bb352b4021"
     },
     "Rcpp": {
       "Package": "Rcpp",
       "Version": "1.0.7",
       "Source": "Repository",
-      "Repository": "CRAN",
+      "Repository": "RSPM",
       "Hash": "dab19adae4440ae55aa8a9d238b246bb"
     },
     "brew": {
       "Package": "brew",
       "Version": "1.0-6",
       "Source": "Repository",
-      "Repository": "CRAN",
+      "Repository": "RSPM",
       "Hash": "92a5f887f9ae3035ac7afde22ba73ee9"
     },
     "callr": {
       "Package": "callr",
       "Version": "3.7.0",
       "Source": "Repository",
-      "Repository": "CRAN",
+      "Repository": "RSPM",
       "Hash": "461aa75a11ce2400245190ef5d3995df"
     },
     "cli": {
       "Package": "cli",
       "Version": "3.1.0",
       "Source": "Repository",
-      "Repository": "CRAN",
+      "Repository": "RSPM",
       "Hash": "66a3834e54593c89d8beefb312347e58"
     },
     "codetools": {
       "Package": "codetools",
       "Version": "0.2-18",
       "Source": "Repository",
-      "Repository": "CRAN",
+      "Repository": "RSPM",
       "Hash": "019388fc48e48b3da0d3a76ff94608a8"
     },
     "commonmark": {
       "Package": "commonmark",
       "Version": "1.7",
       "Source": "Repository",
-      "Repository": "CRAN",
+      "Repository": "RSPM",
       "Hash": "0f22be39ec1d141fd03683c06f3a6e67"
     },
     "cpp11": {
@@ -97,56 +97,49 @@
       "Package": "crayon",
       "Version": "1.4.2",
       "Source": "Repository",
-      "Repository": "CRAN",
+      "Repository": "RSPM",
       "Hash": "0a6a65d92bd45b47b94b84244b528d17"
     },
     "cyclocomp": {
       "Package": "cyclocomp",
       "Version": "1.1.0",
       "Source": "Repository",
-      "Repository": "CRAN",
+      "Repository": "RSPM",
       "Hash": "53cbed70a2f7472d48fb6aef08442f25"
     },
     "desc": {
       "Package": "desc",
       "Version": "1.4.0",
       "Source": "Repository",
-      "Repository": "CRAN",
-      "Hash": "28763d08fadd0b733e3cee9dab4e12fe"
-    },
-    "digest": {
-      "Package": "digest",
-      "Version": "0.6.29",
-      "Source": "Repository",
       "Repository": "RSPM",
-      "Hash": "cf6b206a045a684728c3267ef7596190"
+      "Hash": "28763d08fadd0b733e3cee9dab4e12fe"
     },
     "docopt": {
       "Package": "docopt",
       "Version": "0.7.1",
       "Source": "Repository",
-      "Repository": "CRAN",
+      "Repository": "RSPM",
       "Hash": "e9eeef7931ee99ca0093f3f20b88e09b"
     },
     "ellipsis": {
       "Package": "ellipsis",
       "Version": "0.3.2",
       "Source": "Repository",
-      "Repository": "CRAN",
+      "Repository": "RSPM",
       "Hash": "bb0eec2fe32e88d9e2836c2f73ea2077"
     },
     "evaluate": {
       "Package": "evaluate",
       "Version": "0.14",
       "Source": "Repository",
-      "Repository": "CRAN",
+      "Repository": "RSPM",
       "Hash": "ec8ca05cffcc70569eaaad8469d2a3a7"
     },
     "fansi": {
       "Package": "fansi",
       "Version": "0.5.0",
       "Source": "Repository",
-      "Repository": "CRAN",
+      "Repository": "RSPM",
       "Hash": "d447b40982c576a72b779f0a3b3da227"
     },
     "fs": {
@@ -160,7 +153,7 @@
       "Package": "git2r",
       "Version": "0.29.0",
       "Source": "Repository",
-      "Repository": "CRAN",
+      "Repository": "RSPM",
       "Hash": "b114135c4749076bd5ef74a5827b6f62"
     },
     "glue": {
@@ -174,49 +167,49 @@
       "Package": "here",
       "Version": "1.0.1",
       "Source": "Repository",
-      "Repository": "CRAN",
+      "Repository": "RSPM",
       "Hash": "24b224366f9c2e7534d2344d10d59211"
     },
     "highr": {
       "Package": "highr",
       "Version": "0.9",
       "Source": "Repository",
-      "Repository": "CRAN",
+      "Repository": "RSPM",
       "Hash": "8eb36c8125038e648e5d111c0d7b2ed4"
     },
     "hunspell": {
       "Package": "hunspell",
       "Version": "3.0.1",
       "Source": "Repository",
-      "Repository": "CRAN",
+      "Repository": "RSPM",
       "Hash": "3987784c19192ad0f2261c456d936df1"
     },
     "jsonlite": {
       "Package": "jsonlite",
       "Version": "1.7.2",
       "Source": "Repository",
-      "Repository": "CRAN",
+      "Repository": "RSPM",
       "Hash": "98138e0994d41508c7a6b84a0600cfcb"
     },
     "knitr": {
       "Package": "knitr",
       "Version": "1.36",
       "Source": "Repository",
-      "Repository": "CRAN",
+      "Repository": "RSPM",
       "Hash": "46344b93f8854714cdf476433a59ed10"
     },
     "lazyeval": {
       "Package": "lazyeval",
       "Version": "0.2.2",
       "Source": "Repository",
-      "Repository": "CRAN",
+      "Repository": "RSPM",
       "Hash": "d908914ae53b04d4c0c0fd72ecc35370"
     },
     "lifecycle": {
       "Package": "lifecycle",
       "Version": "1.0.1",
       "Source": "Repository",
-      "Repository": "CRAN",
+      "Repository": "RSPM",
       "Hash": "a6b6d352e3ed897373ab19d8395c98d0"
     },
     "lintr": {
@@ -235,21 +228,21 @@
       "Package": "magrittr",
       "Version": "2.0.1",
       "Source": "Repository",
-      "Repository": "CRAN",
+      "Repository": "RSPM",
       "Hash": "41287f1ac7d28a92f0a286ed507928d3"
     },
     "pillar": {
       "Package": "pillar",
       "Version": "1.6.4",
       "Source": "Repository",
-      "Repository": "CRAN",
+      "Repository": "RSPM",
       "Hash": "60200b6aa32314ac457d3efbb5ccbd98"
     },
     "pkgconfig": {
       "Package": "pkgconfig",
       "Version": "2.0.3",
       "Source": "Repository",
-      "Repository": "CRAN",
+      "Repository": "RSPM",
       "Hash": "01f28d4278f15c76cddbea05899c5d6f"
     },
     "pkgload": {
@@ -263,28 +256,28 @@
       "Package": "processx",
       "Version": "3.5.2",
       "Source": "Repository",
-      "Repository": "CRAN",
+      "Repository": "RSPM",
       "Hash": "0cbca2bc4d16525d009c4dbba156b37c"
     },
     "ps": {
       "Package": "ps",
       "Version": "1.6.0",
       "Source": "Repository",
-      "Repository": "CRAN",
+      "Repository": "RSPM",
       "Hash": "32620e2001c1dce1af49c49dccbb9420"
     },
     "purrr": {
       "Package": "purrr",
       "Version": "0.3.4",
       "Source": "Repository",
-      "Repository": "CRAN",
+      "Repository": "RSPM",
       "Hash": "97def703420c8ab10d8f0e6c72101e02"
     },
     "rematch2": {
       "Package": "rematch2",
       "Version": "2.1.2",
       "Source": "Repository",
-      "Repository": "CRAN",
+      "Repository": "RSPM",
       "Hash": "76c9e04c712a05848ae7a23d2f170a40"
     },
     "remotes": {
@@ -317,35 +310,35 @@
       "Package": "rlang",
       "Version": "0.4.12",
       "Source": "Repository",
-      "Repository": "CRAN",
+      "Repository": "RSPM",
       "Hash": "0879f5388fe6e4d56d7ef0b7ccb031e5"
     },
     "roxygen2": {
       "Package": "roxygen2",
       "Version": "7.1.2",
       "Source": "Repository",
-      "Repository": "CRAN",
+      "Repository": "RSPM",
       "Hash": "eb9849556c4250305106e82edae35b72"
     },
     "rprojroot": {
       "Package": "rprojroot",
       "Version": "2.0.2",
       "Source": "Repository",
-      "Repository": "CRAN",
+      "Repository": "RSPM",
       "Hash": "249d8cd1e74a8f6a26194a91b47f21d1"
     },
     "rstudioapi": {
       "Package": "rstudioapi",
       "Version": "0.13",
       "Source": "Repository",
-      "Repository": "CRAN",
+      "Repository": "RSPM",
       "Hash": "06c85365a03fdaf699966cc1d3cf53ea"
     },
     "spelling": {
       "Package": "spelling",
       "Version": "2.2",
       "Source": "Repository",
-      "Repository": "CRAN",
+      "Repository": "RSPM",
       "Hash": "b8c899a5c83f0d897286550481c91798"
     },
     "stringi": {
@@ -359,7 +352,7 @@
       "Package": "stringr",
       "Version": "1.4.0",
       "Source": "Repository",
-      "Repository": "CRAN",
+      "Repository": "RSPM",
       "Hash": "0759e6b6c0957edb1311028a49a35e76"
     },
     "styler": {
@@ -385,14 +378,14 @@
       "Package": "utf8",
       "Version": "1.2.2",
       "Source": "Repository",
-      "Repository": "CRAN",
+      "Repository": "RSPM",
       "Hash": "c9c462b759a5cc844ae25b5942654d13"
     },
     "vctrs": {
       "Package": "vctrs",
       "Version": "0.3.8",
       "Source": "Repository",
-      "Repository": "CRAN",
+      "Repository": "RSPM",
       "Hash": "ecf749a1b39ea72bd9b51b76292261f1"
     },
     "withr": {
@@ -406,7 +399,7 @@
       "Package": "xfun",
       "Version": "0.28",
       "Source": "Repository",
-      "Repository": "CRAN",
+      "Repository": "RSPM",
       "Hash": "f7f3a61ab62cd046d307577a8ae12999"
     },
     "xml2": {
@@ -420,14 +413,14 @@
       "Package": "xmlparsedata",
       "Version": "1.0.5",
       "Source": "Repository",
-      "Repository": "CRAN",
+      "Repository": "RSPM",
       "Hash": "45e4bf3c46476896e821fc0a408fb4fc"
     },
     "yaml": {
       "Package": "yaml",
       "Version": "2.2.1",
       "Source": "Repository",
-      "Repository": "CRAN",
+      "Repository": "RSPM",
       "Hash": "2826c5d9efb0a88f657c7a679c7106db"
     }
   }
diff --git a/tests/testthat/test-hooks.R b/tests/testthat/test-hooks.R
index 7d6307893..64a0dd880 100644
--- a/tests/testthat/test-hooks.R
+++ b/tests/testthat/test-hooks.R
@@ -238,32 +238,36 @@ run_test("deps-in-desc",
 # because .Rprofile is executed on startup, this must be an installed
 # package (to not give an error staight away) not listed in
 # test_path("in/DESCRIPTION")
-expect_true(rlang::is_installed("R.cache"))
-run_test("deps-in-desc",
-  "Rprofile",
-  suffix = "", error_msg = "Dependency check failed",
-  artifacts = c("DESCRIPTION" = test_path("in/DESCRIPTION")),
-  file_transformer = function(files) {
-    writeLines("R.cache::findCache", files)
-    fs::file_move(
-      files,
-      fs::path(fs::path_dir(files), paste0(".", fs::path_file(files)))
-    )
-  }
-)
+if (Sys.getenv("GITHUB_WORKFLOW") != "Hook tests") {
+  # seems like .Rprofile with renv activation does not get executed when
+  # argument to Rscript contains Rprofile ?! Skip this
+  expect_true(rlang::is_installed("R.cache"))
+  run_test("deps-in-desc",
+    "Rprofile",
+    suffix = "", error_msg = "Dependency check failed",
+    artifacts = c("DESCRIPTION" = test_path("in/DESCRIPTION")),
+    file_transformer = function(files) {
+      writeLines("R.cache::findCache", files)
+      fs::file_move(
+        files,
+        fs::path(fs::path_dir(files), paste0(".", fs::path_file(files)))
+      )
+    }
+  )
 
-run_test("deps-in-desc",
-  "Rprofile",
-  suffix = "", error_msg = NULL,
-  artifacts = c("DESCRIPTION" = test_path("in/DESCRIPTION")),
-  file_transformer = function(files) {
-    writeLines("utils::head", files)
-    fs::file_move(
-      files,
-      fs::path(fs::path_dir(files), paste0(".", fs::path_file(files)))
-    )
-  }
-)
+  run_test("deps-in-desc",
+    "Rprofile",
+    suffix = "", error_msg = NULL,
+    artifacts = c("DESCRIPTION" = test_path("in/DESCRIPTION")),
+    file_transformer = function(files) {
+      writeLines("utils::head", files)
+      fs::file_move(
+        files,
+        fs::path(fs::path_dir(files), paste0(".", fs::path_file(files)))
+      )
+    }
+  )
+}
 
 
 ### . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..
@@ -304,84 +308,68 @@ run_test("roxygenize",
 
 ### . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..
 ### readme-rmd-rendered                                                     ####
-run_test("readme-rmd-rendered",
-  file_name = c("README.Rmd", "README.md"),
-  suffix = "",
-  error_msg = NULL,
-  msg = NULL,
-  file_transformer = function(files) {
-    if (length(files) > 1) {
-      # transformer is called once on all files and once per file
-      content_2 <- readLines(files[2])
-      Sys.sleep(2)
-      writeLines(content_2, files[2])
-      git_init()
-      git2r::add(path = files)
+if (has_git()) {
+  run_test("readme-rmd-rendered",
+    file_name = c("README.md", "README.Rmd"),
+    suffix = "",
+    error_msg = "out of date",
+    msg = NULL,
+    file_transformer = function(files) {
+      if (length(files) > 1) {
+        # transformer is called once on all files and once per file
+        content_2 <- readLines(files[2])
+        Sys.sleep(2)
+        writeLines(content_2, files[2])
+        git_init()
+        git2r::add(path = files)
+      }
+      files
     }
-    files
-  }
-)
+  )
 
-run_test("readme-rmd-rendered",
-  file_name = c("README.md", "README.Rmd"),
-  suffix = "",
-  error_msg = "out of date",
-  msg = NULL,
-  file_transformer = function(files) {
-    if (length(files) > 1) {
-      # transformer is called once on all files and once per file
-      content_2 <- readLines(files[2])
-      Sys.sleep(2)
-      writeLines(content_2, files[2])
-      git_init()
-      git2r::add(path = files)
-    }
-    files
-  }
-)
 
+  # only one file staged
+  run_test("readme-rmd-rendered",
+    file_name = c("README.Rmd", "README.md"),
+    suffix = "",
+    error_msg = "should be both staged",
+    msg = NULL,
+    file_transformer = function(files) {
+      if (length(files) > 1) {
+        # transformer is called once on all files and once per file
+        content_2 <- readLines(files[2])
+        Sys.sleep(2)
+        writeLines(content_2, files[2])
+        git_init()
+        git2r::add(path = files[1])
+      }
+      files
+    }
+  )
 
-# only one file staged
-run_test("readme-rmd-rendered",
-  file_name = c("README.Rmd", "README.md"),
-  suffix = "",
-  error_msg = "should be both staged",
-  msg = NULL,
-  file_transformer = function(files) {
-    if (length(files) > 1) {
-      # transformer is called once on all files and once per file
-      content_2 <- readLines(files[2])
-      Sys.sleep(2)
-      writeLines(content_2, files[2])
+  # only has md
+  run_test("readme-rmd-rendered",
+    file_name = "README.md",
+    suffix = "",
+    error_msg = NULL,
+    msg = NULL,
+    file_transformer = function(files) {
       git_init()
       git2r::add(path = files[1])
+      files
     }
-    files
-  }
-)
-
-# only has md
-run_test("readme-rmd-rendered",
-  file_name = "README.md",
-  suffix = "",
-  error_msg = NULL,
-  msg = NULL,
-  file_transformer = function(files) {
-    git_init()
-    git2r::add(path = files[1])
-    files
-  }
-)
+  )
 
-# only has Rmd
-run_test("readme-rmd-rendered",
-  file_name = "README.Rmd",
-  suffix = "",
-  error_msg = NULL,
-  msg = NULL,
-  file_transformer = function(files) {
-    git_init()
-    git2r::add(path = files[1])
-    files
-  }
-)
+  # only has Rmd
+  run_test("readme-rmd-rendered",
+    file_name = "README.Rmd",
+    suffix = "",
+    error_msg = NULL,
+    msg = NULL,
+    file_transformer = function(files) {
+      git_init()
+      git2r::add(path = files[1])
+      files
+    }
+  )
+}