diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..0081f74
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,17 @@
+FROM alpine:3
+
+WORKDIR /nvim
+
+RUN <<EOF
+  \apk --no-cache update
+  \apk add --no-cache neovim=0.9.4-r0 git=2.43.0-r0 make=4.4.1-r2
+
+  \git clone --depth 1 https://github.com/nvim-lua/plenary.nvim /nvim/plugins/plenary.nvim
+  \git clone --depth 1 https://github.com/tjdevries/tree-sitter-lua /nvim/plugins/tree-sitter-lua
+  \git clone --depth 1 https://github.com/neovim/nvim-lspconfig /nvim/plugins/nvim-lspconfig
+  \git clone --depth 1 https://github.com/mfussenegger/nvim-dap /nvim/plugins/nvim-dap
+EOF
+
+WORKDIR /nvim-dap
+
+COPY --chmod=775 . .
diff --git a/Makefile b/Makefile
index d5b8293..e4769ad 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,6 @@
 test:
-	bash ./scripts/run_tests.sh
+	@printf "\nRunning tests\n"
+	@docker run -it --rm local/nvim-dap:latest sh ./scripts/run_tests.sh
 
 lint:
 	@printf "\nRunning luacheck\n"
@@ -8,4 +9,7 @@ lint:
 docgen:
 	nvim --headless --noplugin -u ./scripts/minimal_init.lua -c "luafile ./scripts/gendocs.lua" -c 'qa'
 
-.PHONY: test lint docgen
+build:
+	@docker buildx build -t local/nvim-dap .
+
+.PHONY: test lint docgen build
diff --git a/scripts/gendocs.lua b/scripts/gendocs.lua
index 995a576..ab1a966 100644
--- a/scripts/gendocs.lua
+++ b/scripts/gendocs.lua
@@ -17,8 +17,11 @@ docs.test = function()
     docgen.write(input_file, output_file_handle)
   end
 
-  output_file_handle:write(' vim:tw=78:ts=8:ft=help:norl:\n')
-  output_file_handle:close()
+  if output_file_handle then
+    output_file_handle:write(' vim:tw=78:ts=8:ft=help:norl:\n')
+    output_file_handle:close()
+  end
+
   vim.cmd([[checktime]])
 end
 
diff --git a/scripts/minimal_init.lua b/scripts/minimal_init.lua
index 0dccdc3..26a224b 100644
--- a/scripts/minimal_init.lua
+++ b/scripts/minimal_init.lua
@@ -1,7 +1,7 @@
 vim.cmd([[set runtimepath+=.]])
-vim.cmd([[set rtp+=~/.local/share/nvim/site/pack/vendor/star/plenary.nvim/]])
-vim.cmd([[set rtp+=~/.local/share/nvim/site/pack/vendor/star/nvim-dap]])
-vim.cmd([[set rtp+=~/.local/share/nvim/site/pack/vendor/star/nvim-lspconfig]])
+vim.cmd([[set rtp+=/nvim/plugins/plenary.nvim]])
+vim.cmd([[set rtp+=/nvim/plugins/nvim-dap]])
+vim.cmd([[set rtp+=/nvim/plugins/nvim-lspconfig]])
 
 vim.cmd([[runtime! plugin/plenary.vim]])
 vim.cmd([[runtime! plugin/nvim-dap.vim]])
diff --git a/scripts/run_tests.sh b/scripts/run_tests.sh
index 4db6819..ebdddc9 100755
--- a/scripts/run_tests.sh
+++ b/scripts/run_tests.sh
@@ -1,16 +1,20 @@
-#!/usr/bin/env bash
+#!/bin/sh
+
+HERE="$(dirname "$(realpath "$0")")"
+MINIMAL_TEST="scripts/minimal_init.lua"
 
-HERE="$(dirname "$(realpath "${BASH_SOURCE[0]}")")"
 cd $HERE/..
 
 run() {
-    nvim --headless --noplugin -u scripts/minimal_init.lua \
-        -c "PlenaryBustedDirectory $1 { minimal_init = './scripts/minimal_init.lua' }"
+  nvim --headless --noplugin -u "${MINIMAL_TEST}" \
+    -c "PlenaryBustedDirectory $1 { minimal_init = './${MINIMAL_TEST}' }"
 }
 
-if [[ $2 = '--summary' ]]; then
-    ## really simple results summary by filtering plenary busted output
-    run tests/$1  2> /dev/null | grep -E '^\S*(Success|Fail(ed)?|Errors?)\s*:'
-else
-    run tests/$1
-fi
+case "$2" in
+'--summary')
+  run tests/$1 2>/dev/null | grep -E '^\S*(Success|Fail(ed)?|Errors?)\s*:'
+  ;;
+*)
+  run tests/$1
+  ;;
+esac