diff --git a/nvim/nvim/config/new/lua/build/adapters/dotnet.lua b/nvim/nvim/config/new/lua/build/adapters/dotnet.lua
new file mode 100644
index 0000000..9c7d151
--- /dev/null
+++ b/nvim/nvim/config/new/lua/build/adapters/dotnet.lua
@@ -0,0 +1,29 @@
+local M = {}
+
+M.pattern = "*.sln"
+
+M.list = function ()
+	-- broken
+	local projs = io.popen("dotnet sln list | tail -n +3")
+	local ret = {}
+	for line in projs:lines() do
+		table.insert(ret, {
+			name = line:match("([^/]+).csproj$"),
+			file = line,
+		})
+	end
+	projs:close()
+	return ret
+end
+
+M.build = function ()
+	return "dotnet build"
+end
+
+M.errorformat = ""
+
+M.run = function (proj)
+	return "dotnet run --project " .. proj[2]
+end
+
+return M
diff --git a/nvim/nvim/config/new/lua/build/init.lua b/nvim/nvim/config/new/lua/build/init.lua
new file mode 100644
index 0000000..c25bb9d
--- /dev/null
+++ b/nvim/nvim/config/new/lua/build/init.lua
@@ -0,0 +1,45 @@
+local has_icon, nwicon = pcall(require, 'nvim-web-devicons')
+
+local M = {
+	adapters = {},
+}
+
+table.insert(M.adapters, require "build.adapters.dotnet")
+
+-- https://stackoverflow.com/questions/49907620/how-to-fuse-array-in-lua
+local function concatArray(a, b)
+	local result = {unpack(a)}
+	table.move(b, 1, #b, #result + 1, result)
+	return result
+end
+
+M.list_projs = function ()
+	local projs = {}
+
+	for _, adapter in pairs(M.adapters) do
+		for _, match in pairs(vim.fn.glob(adapter.pattern, false, true)) do
+			projs = concatArray(projs, adapter.list(match))
+		end
+	end
+	return projs
+end
+
+M.select_proj = function ()
+	local projs = M.list_projs()
+	vim.ui.select(projs, {
+		prompt = "Select a project",
+		format_item = function (proj)
+			local icon = proj.icon or has_icon and nwicon.get_icon(
+				vim.fn.fnamemodify(proj.file, ':t'),
+				vim.fn.fnamemodify(proj.file, ':e'),
+				{ default = true }
+			) or " "
+			return icon .. " " .. proj.name
+		end
+	}, function (proj)
+
+	end)
+end
+
+
+return M