diff --git a/.Rbuildignore b/.Rbuildignore
new file mode 100644
index 0000000..d494c52
--- /dev/null
+++ b/.Rbuildignore
@@ -0,0 +1,4 @@
+^sigbm\.Rproj$
+^\.Rproj\.user$
+^\.github$
+^data-raw$
diff --git a/.github/.gitignore b/.github/.gitignore
new file mode 100644
index 0000000..2d19fc7
--- /dev/null
+++ b/.github/.gitignore
@@ -0,0 +1 @@
+*.html
diff --git a/.github/workflows/download-sigbm.yaml b/.github/workflows/download-sigbm.yaml
new file mode 100644
index 0000000..eb2981d
--- /dev/null
+++ b/.github/workflows/download-sigbm.yaml
@@ -0,0 +1,37 @@
+on:
+  schedule:
+    # * is a special character in YAML so you have to quote this string
+    - cron:  "15 12 * * *"
+  workflow_dispatch:
+    branches: [main, master]
+
+
+name: download-sigbm
+
+jobs:
+  download:
+    runs-on: ubuntu-latest
+    env:
+      GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
+    steps:
+      - uses: actions/checkout@v2
+
+      - uses: r-lib/actions/setup-r@v1
+        with:
+          use-public-rspm: true
+
+      - name: Install httr
+        run: install.packages("httr")
+        shell: Rscript {0}
+
+      - name: download sigbm
+        run: httr::POST("https://app.anm.gov.br/SIGBM/Publico/ClassificacaoNacionalDaBarragem/ExportarExcel", httr::write_disk(paste0("data-raw/sigbm_download_", Sys.Date(),".xlsx")))
+        shell: Rscript {0}
+
+      - name: commit results
+        run: |
+          git config --local user.name "$GITHUB_ACTOR"
+          git config --local user.email "$GITHUB_ACTOR@users.noreply.github.com"
+          git add .
+          git commit -m 'Update data' || echo "Update data"
+          git push origin || echo "Update data"
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..565f2b6
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,5 @@
+.Rproj.user
+.Rhistory
+.Rdata
+.httr-oauth
+.DS_Store
diff --git a/DESCRIPTION b/DESCRIPTION
new file mode 100644
index 0000000..c65f3a0
--- /dev/null
+++ b/DESCRIPTION
@@ -0,0 +1,12 @@
+Package: sigbm
+Title: What the Package Does (One Line, Title Case)
+Version: 0.0.0.9000
+Authors@R: 
+    person("First", "Last", , "first.last@example.com", role = c("aut", "cre"),
+           comment = c(ORCID = "YOUR-ORCID-ID"))
+Description: What the package does (one paragraph).
+License: `use_mit_license()`, `use_gpl3_license()` or friends to pick a
+    license
+Encoding: UTF-8
+Roxygen: list(markdown = TRUE)
+RoxygenNote: 7.1.2
diff --git a/NAMESPACE b/NAMESPACE
new file mode 100644
index 0000000..6ae9268
--- /dev/null
+++ b/NAMESPACE
@@ -0,0 +1,2 @@
+# Generated by roxygen2: do not edit by hand
+
diff --git a/data-raw/DATASET.R b/data-raw/DATASET.R
new file mode 100644
index 0000000..6514a94
--- /dev/null
+++ b/data-raw/DATASET.R
@@ -0,0 +1,3 @@
+## code to prepare `DATASET` dataset goes here
+
+usethis::use_data(DATASET, overwrite = TRUE)
diff --git a/sigbm.Rproj b/sigbm.Rproj
new file mode 100644
index 0000000..69fafd4
--- /dev/null
+++ b/sigbm.Rproj
@@ -0,0 +1,22 @@
+Version: 1.0
+
+RestoreWorkspace: No
+SaveWorkspace: No
+AlwaysSaveHistory: Default
+
+EnableCodeIndexing: Yes
+UseSpacesForTab: Yes
+NumSpacesForTab: 2
+Encoding: UTF-8
+
+RnwWeave: Sweave
+LaTeX: pdfLaTeX
+
+AutoAppendNewline: Yes
+StripTrailingWhitespace: Yes
+LineEndingConversion: Posix
+
+BuildType: Package
+PackageUseDevtools: Yes
+PackageInstallArgs: --no-multiarch --with-keep.source
+PackageRoxygenize: rd,collate,namespace