diff --git a/.github/workflows/pkgdown.yaml b/.github/workflows/pkgdown.yaml
deleted file mode 100644
index bfc9f4d..0000000
--- a/.github/workflows/pkgdown.yaml
+++ /dev/null
@@ -1,49 +0,0 @@
-# Workflow derived from https://github.com/r-lib/actions/tree/v2/examples
-# Need help debugging build failures? Start at https://github.com/r-lib/actions#where-to-find-help
-on:
-  push:
-    branches: [main, master]
-  pull_request:
-  release:
-    types: [published]
-  workflow_dispatch:
-
-name: pkgdown.yaml
-
-permissions: read-all
-
-jobs:
-  pkgdown:
-    runs-on: ubuntu-latest
-    # Only restrict concurrency for non-PR jobs
-    concurrency:
-      group: pkgdown-${{ github.event_name != 'pull_request' || github.run_id }}
-    env:
-      GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
-    permissions:
-      contents: write
-    steps:
-      - uses: actions/checkout@v4
-
-      - uses: r-lib/actions/setup-pandoc@v2
-
-      - uses: r-lib/actions/setup-r@v2
-        with:
-          use-public-rspm: true
-
-      - uses: r-lib/actions/setup-r-dependencies@v2
-        with:
-          extra-packages: any::pkgdown, local::.
-          needs: website
-
-      - name: Build site
-        run: pkgdown::build_site_github_pages(new_process = FALSE, install = FALSE)
-        shell: Rscript {0}
-
-      - name: Deploy to GitHub pages 🚀
-        if: github.event_name != 'pull_request'
-        uses: JamesIves/github-pages-deploy-action@v4.5.0
-        with:
-          clean: false
-          branch: gh-pages
-          folder: docs
diff --git a/.github/workflows/tic.yml b/.github/workflows/tic.yml
deleted file mode 100644
index 69043e6..0000000
--- a/.github/workflows/tic.yml
+++ /dev/null
@@ -1,143 +0,0 @@
-## tic GitHub Actions template: linux-macos-windows-deploy
-## revision date: 2021-06-27
-on:
-  workflow_dispatch:
-  push:
-  pull_request:
-  # for now, CRON jobs only run on the default branch of the repo (i.e. usually on master)
-  schedule:
-    # * is a special character in YAML so you have to quote this string
-    - cron: "0 4 * * *"
-
-name: tic
-
-jobs:
-  all:
-    runs-on: ${{ matrix.config.os }}
-
-    name: ${{ matrix.config.os }} (${{ matrix.config.r }})
-
-    strategy:
-      fail-fast: false
-      matrix:
-        config:
-          # use a different tic template type if you do not want to build on all listed platforms
-          - { os: windows-latest, r: "release" }
-          - { os: macOS-latest, r: "release", pkgdown: "true", latex: "true" }
-          - { os: ubuntu-latest, r: "devel" }
-          - { os: ubuntu-latest, r: "release" }
-
-    env:
-      # otherwise remotes::fun() errors cause the build to fail. Example: Unavailability of binaries
-      R_REMOTES_NO_ERRORS_FROM_WARNINGS: true
-      CRAN: ${{ matrix.config.cran }}
-      # make sure to run `tic::use_ghactions_deploy()` to set up deployment
-      TIC_DEPLOY_KEY: ${{ secrets.TIC_DEPLOY_KEY }}
-      # prevent rgl issues because no X11 display is available
-      RGL_USE_NULL: true
-      # if you use bookdown or blogdown, replace "PKGDOWN" by the respective
-      # capitalized term. This also might need to be done in tic.R
-      BUILD_PKGDOWN: ${{ matrix.config.pkgdown }}
-      # macOS >= 10.15.4 linking
-      SDKROOT: /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk
-      # use GITHUB_TOKEN from GitHub to workaround rate limits in {remotes}
-      GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
-
-    steps:
-      - uses: actions/checkout@v2
-
-      - uses: r-lib/actions/setup-r@master
-        with:
-          r-version: ${{ matrix.config.r }}
-          Ncpus: 4
-
-      # LaTeX. Installation time:
-      # Linux: ~ 1 min
-      # macOS: ~ 1 min 30s
-      # Windows: never finishes
-      - uses: r-lib/actions/setup-tinytex@master
-        if: matrix.config.latex == 'true'
-
-      - uses: r-lib/actions/setup-pandoc@master
-
-      # set date/week for use in cache creation
-      # https://github.community/t5/GitHub-Actions/How-to-set-and-access-a-Workflow-variable/m-p/42970
-      # - cache R packages daily
-      - name: "[Cache] Prepare daily timestamp for cache"
-        if: runner.os != 'Windows'
-        id: date
-        run: echo "::set-output name=date::$(date '+%d-%m')"
-
-      - name: "[Cache] Cache R packages"
-        if: runner.os != 'Windows'
-        uses: pat-s/always-upload-cache@v2
-        with:
-          path: ${{ env.R_LIBS_USER }}
-          key: ${{ runner.os }}-r-${{ matrix.config.r }}-${{steps.date.outputs.date}}
-          restore-keys: ${{ runner.os }}-r-${{ matrix.config.r }}-${{steps.date.outputs.date}}
-
-      - name: "[Stage] [Linux] Install required system libs"
-        if: runner.os == 'Linux'
-        run: sudo apt install libcurl4-openssl-dev libgit2-dev
-
-      # for some strange Windows reason this step and the next one need to be decoupled
-      - name: "[Stage] Prepare"
-        run: |
-          Rscript -e "if (!requireNamespace('remotes')) install.packages('remotes', type = 'source')"
-          Rscript -e "if (getRversion() < '3.2' && !requireNamespace('curl')) install.packages('curl', type = 'source')"
-
-      - name: "[Stage] [macOS] Install libgit2"
-        if: runner.os == 'macOS'
-        run: brew install libgit2
-
-      - name: "[Stage] [macOS] Install system libs for pkgdown"
-        if: runner.os == 'macOS' && matrix.config.pkgdown != ''
-        run: brew install harfbuzz fribidi
-
-      - name: "[Stage] [Linux] Install system libs for pkgdown"
-        if: runner.os == 'Linux' && matrix.config.pkgdown != ''
-        run: sudo apt install libharfbuzz-dev libfribidi-dev
-
-      # Try to automatically check for system dependencies and install them
-      # Note: this might not catch all required system libs and manual action might be needed
-      - name: "[Stage] [Linux] Install linux system dependencies"
-        if: runner.os == 'Linux'
-        run: |
-          while read -r cmd
-          do
-            eval sudo $cmd
-          done < <(Rscript -e 'writeLines(remotes::system_requirements("ubuntu", "20.04"))')
-
-      - name: "[Stage] Install"
-        if: matrix.config.os != 'macOS-latest' || matrix.config.r != 'devel'
-        run: Rscript -e "remotes::install_github('ropensci/tic')" -e "print(tic::dsl_load())" -e "tic::prepare_all_stages()" -e "tic::before_install()" -e "tic::install()"
-
-      # macOS devel needs its own stage because we need to work with an option to suppress the usage of binaries
-      - name: "[Stage] Prepare & Install (macOS-devel)"
-        if: matrix.config.os == 'macOS-latest' && matrix.config.r == 'devel'
-        run: |
-          echo -e 'options(Ncpus = 4, pkgType = "source", repos = structure(c(CRAN = "https://cloud.r-project.org/")))' > $HOME/.Rprofile
-          Rscript -e "remotes::install_github('ropensci/tic')" -e "print(tic::dsl_load())" -e "tic::prepare_all_stages()" -e "tic::before_install()" -e "tic::install()"
-
-      - name: "[Stage] Script"
-        run: Rscript -e 'tic::script()'
-
-      - name: "[Stage] After Success"
-        if: matrix.config.os == 'macOS-latest' && matrix.config.r == 'release'
-        run: Rscript -e "tic::after_success()"
-
-      - name: "[Stage] Upload R CMD check artifacts"
-        if: failure()
-        uses: actions/upload-artifact@v2
-        with:
-          name: ${{ runner.os }}-r${{ matrix.config.r }}-results
-          path: check
-      - name: "[Stage] Before Deploy"
-        run: |
-          Rscript -e "tic::before_deploy()"
-
-      - name: "[Stage] Deploy"
-        run: Rscript -e "tic::deploy()"
-
-      - name: "[Stage] After Deploy"
-        run: Rscript -e "tic::after_deploy()"
diff --git a/.gitignore b/.gitignore
index 63efb15..8b8f880 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,6 +2,7 @@
 .Rhistory
 .RData
 .Rbuildignore
+*.Rproj
 ..Rcheck
 inst/doc
 *.vs/
diff --git a/echarty.Rproj b/echarty.Rproj
deleted file mode 100644
index 59dcf2f..0000000
--- a/echarty.Rproj
+++ /dev/null
@@ -1,19 +0,0 @@
-Version: 1.0
-
-RestoreWorkspace: Default
-SaveWorkspace: Default
-AlwaysSaveHistory: Default
-
-EnableCodeIndexing: Yes
-UseSpacesForTab: Yes
-NumSpacesForTab: 2
-Encoding: UTF-8
-
-RnwWeave: knitr
-LaTeX: pdfLaTeX
-
-BuildType: Package
-PackageUseDevtools: Yes
-PackageInstallArgs: --no-multiarch --with-keep.source --no-staged-install
-PackageCheckArgs: --as-cran
-PackageRoxygenize: rd,collate,namespace,vignette