diff --git a/.github/.gitignore b/.github/.gitignore
new file mode 100644
index 0000000..d3fc626
--- /dev/null
+++ b/.github/.gitignore
@@ -0,0 +1 @@
+*.html
diff --git a/.github/workflows/build_book_bioc_docker.yml b/.github/workflows/build_book_bioc_docker.yml
index 9d9ec29..e3c2eec 100644
--- a/.github/workflows/build_book_bioc_docker.yml
+++ b/.github/workflows/build_book_bioc_docker.yml
@@ -47,7 +47,7 @@ jobs:
       fail-fast: false
       matrix:
         config:
-          - { os: ubuntu-latest, r: '4.1', bioc: '3.13', cont: "bioconductor/bioconductor_docker:RELEASE_3_13", rspm: "https://packagemanager.rstudio.com/cran/__linux__/focal/latest" }
+          - { os: ubuntu-latest, r: '4.1', bioc: '3.13', cont: "bioconductor/bioconductor_docker:RELEASE_3_13", rspm: "https://packagemanager.rstudio.com/cran/__linux__/jammy/latest" }
           - { os: macOS-latest, r: '4.1', bioc: '3.13'}
           - { os: windows-latest, r: '4.1', bioc: '3.13'}
           ## Check https://github.com/r-lib/actions/tree/master/examples
@@ -74,12 +74,12 @@ jobs:
       ## https://github.com/r-lib/actions/blob/master/examples/check-standard.yaml
       ## If they update their steps, we will also need to update ours.
       - name: Checkout Repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       ## R is already included in the Bioconductor docker images
       - name: Setup R from r-lib
         if: runner.os != 'Linux'
-        uses: r-lib/actions/setup-r@master
+        uses: r-lib/actions/setup-r@v2
         with:
           r-version: ${{ matrix.config.r }}
           http-user-agent: ${{ matrix.config.http-user-agent }}
@@ -87,7 +87,7 @@ jobs:
       ## pandoc is already included in the Bioconductor docker images
       - name: Setup pandoc from r-lib
         if: runner.os != 'Linux'
-        uses: r-lib/actions/setup-pandoc@master
+        uses: r-lib/actions/setup-pandoc@v2
 
       - name: Query dependencies
         run: |
@@ -97,7 +97,7 @@ jobs:
 
       - name: Restore R package cache
         if: "!contains(github.event.head_commit.message, '/nocache') && runner.os != 'Linux'"
-        uses: actions/cache@v2
+        uses: actions/cache@v3
         with:
           path: ${{ env.R_LIBS_USER }}
           key: ${{ env.cache-version }}-${{ runner.os }}-biocversion-RELEASE_3_13-r-4.1-${{ hashFiles('.github/depends.Rds') }}
@@ -105,18 +105,18 @@ jobs:
 
       - name: Cache R packages on Linux
         if: "!contains(github.event.head_commit.message, '/nocache') && runner.os == 'Linux' "
-        uses: actions/cache@v2
+        uses: actions/cache@v3
         with:
           path: /home/runner/work/_temp/Library
           key: ${{ env.cache-version }}-${{ runner.os }}-biocversion-RELEASE_3_13-r-4.1-${{ hashFiles('.github/depends.Rds') }}
           restore-keys: ${{ env.cache-version }}-${{ runner.os }}-biocversion-RELEASE_3_13-r-4.1-
 
-      - name: Install Linux system dependencies
-        if: runner.os == 'Linux'
-        run: |
-          sysreqs=$(Rscript -e 'cat("apt-get update -y && apt-get install -y", paste(gsub("apt-get install -y ", "", remotes::system_requirements("ubuntu", "20.04")), collapse = " "))')
-          echo $sysreqs
-          sudo -s eval "$sysreqs"
+      # - name: Install Linux system dependencies
+      #   if: runner.os == 'Linux'
+      #   run: |
+      #     sysreqs=$(Rscript -e 'cat("apt-get update -y && apt-get install -y", paste(gsub("apt-get install -y ", "", remotes::system_requirements("ubuntu", "20.04")), collapse = " "))')
+      #     echo $sysreqs
+      #     sudo -s eval "$sysreqs"
 
       - name: Install macOS system dependencies
         if: matrix.config.os == 'macOS-latest'
@@ -164,31 +164,19 @@ jobs:
           ## https://github.com/r-lib/remotes/issues/296
           ## Ideally, all dependencies should get installed in the first pass.
 
-          ## Set the repos source depending on the OS
-          ## Alternatively use https://storage.googleapis.com/bioconductor_docker/packages/
-          ## though based on https://bit.ly/bioc2021-package-binaries
-          ## the Azure link will be the main one going forward.
-          gha_repos <- if(
-              .Platform$OS.type == "unix" && Sys.info()["sysname"] != "Darwin"
-          ) c(
-              "AnVIL" = "https://bioconductordocker.blob.core.windows.net/packages/3.13/bioc",
-              BiocManager::repositories()
-              ) else BiocManager::repositories()
+          ## For running the checks
+          message(paste('****', Sys.time(), 'installing rcmdcheck and BiocCheck ****'))
+          install.packages(c("rcmdcheck", "BiocCheck"), repos = BiocManager::repositories())
 
           ## Pass #1 at installing dependencies
-          ## This pass uses AnVIL-powered fast binaries
-          ## details at https://github.com/nturaga/bioc2021-bioconductor-binaries
-          ## The speed gains only apply to the docker builds.
           message(paste('****', Sys.time(), 'pass number 1 at installing dependencies: local dependencies ****'))
-          remotes::install_local(dependencies = TRUE, repos = gha_repos, build_vignettes = FALSE, upgrade = TRUE)
+          remotes::install_local(dependencies = TRUE, repos = BiocManager::repositories(), build_vignettes = FALSE, upgrade = TRUE)
         continue-on-error: true
         shell: Rscript {0}
 
       - name: Install dependencies pass 2
         run: |
           ## Pass #2 at installing dependencies
-          ## This pass does not use AnVIL and will thus update any packages
-          ## that have seen been updated in Bioconductor
           message(paste('****', Sys.time(), 'pass number 2 at installing dependencies: any remaining dependencies ****'))
           remotes::install_local(dependencies = TRUE, repos = BiocManager::repositories(), build_vignettes = TRUE, upgrade = TRUE, force = TRUE)
         shell: Rscript {0}
diff --git a/cdsb2021_scRNAseq.Rproj b/cdsb2021_scRNAseq.Rproj
index e02ed20..49a825b 100644
--- a/cdsb2021_scRNAseq.Rproj
+++ b/cdsb2021_scRNAseq.Rproj
@@ -1,19 +1,19 @@
-Version: 1.0
-
-RestoreWorkspace: No
-SaveWorkspace: No
-AlwaysSaveHistory: No
-
-EnableCodeIndexing: Yes
-UseSpacesForTab: Yes
-NumSpacesForTab: 4
-Encoding: UTF-8
-
-RnwWeave: Sweave
-LaTeX: pdfLaTeX
-
-AutoAppendNewline: Yes
-StripTrailingWhitespace: Yes
-LineEndingConversion: Posix
-
-BuildType: Website
+Version: 1.0
+
+RestoreWorkspace: No
+SaveWorkspace: No
+AlwaysSaveHistory: No
+
+EnableCodeIndexing: Yes
+UseSpacesForTab: Yes
+NumSpacesForTab: 4
+Encoding: UTF-8
+
+RnwWeave: Sweave
+LaTeX: pdfLaTeX
+
+AutoAppendNewline: Yes
+StripTrailingWhitespace: Yes
+LineEndingConversion: Posix
+
+BuildType: Website