Building caddy

steps to build caddy

download this to a blank dir:

// Copyright 2015 Matthew Holt and The Caddy Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

// Package main is the entry point of the Caddy application.
// Most of Caddy's functionality is provided through modules,
// which can be plugged in by adding their import below.
//
// There is no need to modify the Caddy source code to customize your
// builds. You can easily build a custom Caddy with these simple steps:
//
//  1. Copy this file (main.go) into a new folder
//  2. Edit the imports below to include the modules you want plugged in
//  3. Run `go mod init caddy`
//  4. Run `go install` or `go build` - you now have a custom binary!
//
// Or you can use xcaddy which does it all for you as a command:
// https://github.com/caddyserver/xcaddy
package main

import (
	caddycmd "github.com/caddyserver/caddy/v2/cmd"

	// plug in Caddy modules here
	_ "github.com/caddyserver/caddy/v2/modules/standard"
        _ "github.com/caddy-dns/digitalocean"
        //_ "github.com/dunglas/frankenphp/caddy"
        _ "github.com/caddyserver/replace-response"
        _ "github.com/caddyserver/transform-encoder"
        _ "github.com/caddyserver/nginx-adapter"
        _ "github.com/caddyserver/cache-handler"
        _ "github.com/aksdb/caddy-cgi/v2"
)

func main() {
	caddycmd.Main()
}

then

`go mod init caddy` 

and

`go mod tidy`

then

`go build`