How to protect your software with copyright?

Question

Copyright

Hello, recently there was such a question as protecting your project with copyright.

I am making some software under the Apache 2.0 license, can I now shove my "Copyright RagAndCodeMan 2021" anywhere? Or is it just words that are not backed up by any proprietary documents, or is my Apache license that document?

Answer 1

Shove who's stopping you.
The point of licenses is not that you forbid stealing (when it stopped someone),
you transfer your normal clients to the legal field. Where they can use your product legally.

Answer 2

or my Apache license is this document?

Yes, it says that you are the owner of all rights to the software.

Copyright [yyyy] [name of copyright owner]
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
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 permissions governing and
limitations under the License.