Creating proprietary modifications to MIT license ThemeWagon Si-Education Next.js Template Source Code

This post follows up on my recent posts
Related recent ChatGPT (CG) private chat: Small school website

Given below are extracts from above mentioned CG chat.

[Probably on 16 Jan. 2026]

Me: https://themewagon.com/themes/si-education/ is a Next.js education template which says it is free download and can be used in commercial projects ...

[Had an exchange with CG on its license related statements. As per CG, it is MIT license and I can use it even for commercial purposes.]

...
Me: 2026-01-17 15-57-53 BTW does MIT license of https://themewagon.com/themes/si-education/  permit me to keep my modifications to the code private. I will retain the license info. as is but not share the repo publicly. Is that Ok?

[CG said it is OK.]
...

Me: By default a next.js build does not copy the readme.md (or license file) into the out directory which is what gets deployed - am I right?
...

Me: Hmm. I think I will do two things:
1) Go with footer attribution. 
2) Simply copy readme.md of the repo into public, with one additional sentence at the top stating that it is the readme of the template that is used as a base in the project. This way I don't touch any of the license info. in the readme and would comply with MIT license attribution requirement.
========================================================

18 Jan. 2026

Me: Earlier in this chat, we had discussed how MIT license allows me to keep my modified version private but that I need to include MIT license for the template code that my project is based on, in the deployed site. ...

Me: Now for my modifications I want to keep it copyrighted to me separately and not under MIT license. How do I specify that the included MIT license is for the base template code only and not for my modifications which are proprietary to me?

CG: Yes — you can absolutely do that. You just need to clearly separate the copyright/licensing for the original template vs your own modifications. Here’s the clean way to handle it, step by step.

1. Keep MIT license for the original template

  • Keep the original template’s copyright notice and MIT license text intact.

  • Place it in /public/LICENSE_TEMPLATE.txt (or keep in README if you prefer) so it is part of the deployed site.

  • In your footer attribution, you can say something like:

“Template adapted from Si Education by GetNextJs Templates.com (MIT License)”

This makes it explicit that MIT applies only to the original template code.


2. Add your own copyright for your modifications

  • At the top of files you modify (or in a separate LICENSE_MYCODE.txt), include something like:

/*
Copyright © 2026 Ravi S. Iyer
All rights reserved. Proprietary code.

This work includes modifications, additions, and extensions to the 
Si Education template (MIT License), which are copyright of GetNextJs Templates.com.
*/

Or, if you prefer a separate file:

LICENSE_MYCODE.txt

Copyright © 2026 Ravi S. Iyer
All rights reserved.

The code in this repository includes modifications, extensions, and new components 
that are proprietary to me. 

The original template code from Si Education (GetNextJs Templates.com) remains 
under the MIT License (see LICENSE_TEMPLATE.txt).

3. How to handle deployment

  • Keep footer attribution as before.

  • Optionally, in an “About / Credits” page, include:

    • Original template MIT license

    • Statement about your proprietary modifications

This makes the distinction very clear to any user or auditor.


4. Why this works

  • MIT license does not restrict you from adding your own proprietary code.

  • You are not relicensing the MIT code — you are only making your modifications proprietary.

  • You are maintaining the required attribution for MIT-covered code.

Industry practice often calls this a “dual copyright notice”: MIT for the original, proprietary for your additions.


5. Optional extra clarity

In your README.md you can summarize:

This project uses the “Si Education” Next.js template (MIT License) as a base.
All modifications, additions, and new components created for this school website 
are copyright © 2026 Ravi S. Iyer and are proprietary.

This makes it legally unambiguous.


✅ Bottom line: You can safely:

  • Keep the template under MIT

  • Retain your modifications as proprietary

  • Comply fully with MIT by attributing the template correctly

This is a well-established, professional approach in real-world projects.


If you want, I can draft a ready-to-deploy footer + LICENSE section that clearly separates MIT code from your proprietary additions — so you can just drop it in your Next.js + GHP site. Do you want me to do that?

Me: Great. Clear. Except for one thing. You said:
Keep footer attribution as before.
But earlier footer attribution is something like: "Template adapted from Si Education by GetNextJs Templates.com (MIT License)" (your suggestion).
Shouldn't the footer attribution additionally mention that modifications to it are copyright to me?
...

Me: I would like the copyright statement to clearly say both points, like you suggested: "Template adapted from Si Education by GetNextJs Templates.com (MIT License). 
Modifications and additional code copyright © 2026 Ravi S. Iyer. All rights reserved."

But it becomes too long to be placed in footer of website. Can't we provide a Copyright link with 'Copyright' or 'Copyright Info' as the text of the link, which takes user to Copyright section of About page with above two sentences?

CG: Yes — that is exactly the professional way to handle it when the full copyright text is too long for a footer.

This is very common in industry: the footer has a short link, and the detailed copyright & license info is on a separate page.


How you can structure it

1. Footer (short link only)

<footer class="text-center text-sm mt-8">
  <a href="/about#copyright">Copyright Info</a>
</footer>
  • Keeps the footer clean and minimal

  • Users can click to view full details


2. About page (or a separate Credits/Copyright page)

[Note: (MIT License) part of line below broken to avoid horizontal scroll bar.]

<section id="copyright">
  <h2>Copyright & Licensing</h2>
  <p>
    Template adapted from <strong>Si Education</strong> by GetNextJs Templates.com 
(MIT License).<br>
    Modifications and additional code copyright © 2026 Ravi S. Iyer. All rights reserved.
  </p>
</section>
  • Clearly separates MIT template from your proprietary modifications

  • Fully compliant with MIT requirements

  • Makes it easy for any auditor, developer, or curious user to see provenance


Benefits of this approach

  1. Footer stays minimal — looks professional and uncluttered.

  2. Legal clarity — both points are explicit and unambiguous.

  3. Flexible for future updates — if you add more proprietary modules, just update the About section, not the footer.

  4. Industry standard — many websites do exactly this with licenses, privacy statements, terms, etc.


Optional polish

You could even include links for both template license and your proprietary notice:

<p>
  Template adapted from <a href="/about#template-license">Si Education (MIT License)</a>.<br>
  Modifications copyright © 2026 Ravi S. Iyer. All rights reserved.
</p>
  • Makes the MIT license text directly accessible

  • Users can see full license without leaving your site


So yes — your idea of a “Copyright Info” footer link pointing to a section with both statements is perfect, professional, and fully compliant.

...

Me: Great. And having a Footer Copyright link like above, will satisfy MIT license requirements, I presume?

CG: Yes — absolutely.

Here’s why your “Copyright Info” footer link” approach fully satisfies MIT requirements:


MIT requirement in plain terms

The MIT license says (key part):

“The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.”

Breaking it down:

  1. You are distributing the template code as part of your site (even if modified).

  2. MIT only requires that the copyright notice and license of the original template be included in the distributed version.


How your approach satisfies it

  • The footer link is visible on all pages.

  • Clicking the link takes the user to a page or section that contains:

    “Template adapted from Si Education by GetNextJs Templates.com (MIT License).”

  • This counts as including the copyright and license with the distributed work.


Additional benefits

  • You also explicitly state your proprietary modifications — good for legal clarity.

  • The footer link keeps the UI clean while still being legally compliant.

  • This is industry-standard practice: many open-source projects do exactly this.


✅ Bottom line

  • Footer link → points to full attribution & MIT notice → compliant

  • You don’t need to put the full MIT text in the footer itself

  • Keeping your own copyright for modifications separate is also perfectly fine


...

Me: Great! Now if I provide my modified version as a deployed website to customer A, I think it would be best to provide customer A the Next.js source code as well. This way customer A is not dependent on me for any future updates he may want to do to his site/app. Do u agree?

CG: Yes — I agree, and I would state this even more strongly: providing the full Next.js source code to customer A is the professionally correct and ethically clean approach, given the way you are positioning this project.

Here is the reasoning, broken down clearly.


1. From a client-trust and professional standpoint

Providing the source code:

  • Eliminates vendor lock-in

  • Signals confidence in your work

  • Builds long-term trust (especially important for a school client)

  • Aligns with common expectations in custom web development contracts

For institutional clients (schools, NGOs, temples, small orgs), dependency on the developer is often seen as a risk. Your approach avoids that entirely.


2. From a legal and licensing standpoint

(a) MIT template code

You must allow redistribution of the MIT-licensed portions anyway.
So withholding source would be artificial, not legally necessary.

(b) Your proprietary modifications

You are allowed to:

  • Copyright them

  • License them to customer A

Providing source code does not mean giving up ownership.

Ownership ≠ access.

You retain copyright unless you explicitly assign it.


3. The correct framing (this is key)

What you are really giving customer A is:

A license to use, modify, and deploy the code for their own site

—not ownership of your intellectual property unless agreed.

This can be as simple as a short clause or README note.


4. Best-practice recommendation (simple and clean)

When you hand over the source code, include:

1. LICENSE-MIT.txt

For the base template (unchanged)

2. README.md or LICENSE-PROPRIETARY.txt

Something like:

Portions of this project are based on the “Si Education” template, licensed under the MIT License.

Modifications, additional components, configuration, and custom logic are
Copyright © 2026 Ravi S. Iyer.

Customer A is granted a non-exclusive, perpetual license to use, modify, and deploy this code for their own website and related applications.

That’s it. No legal overkill.


5. Practical advantage for you

This approach also protects you:

  • Fewer future “urgent support” expectations

  • Clear boundary between delivery and ongoing maintenance

  • If they come back later, it’s a new engagement, not an obligation


6. Verdict

✔ Yes, you are thinking correctly
✔ This is aligned with open-source ethics
✔ It improves client confidence
✔ It does not weaken your IP position
✔ It fits well with your MIT + proprietary split

...

Me: Customer A is granted a non-exclusive, perpetual license to use, modify, and deploy this code for their own website and related applications.
Please explain the terms: non-exclusive and perpetual.
Also, why do we need to say, 'and related applications'?
Finally when we say, for their own website, we are limiting customer A usage to his website (or perhaps websites - that's Ok by me). The key issue for me is that customer A should not be legally allowed to simply copy over the software to some other party X. While I may not be able to prevent that, at least it should be illegal and party X could be challenged legally if I want.

CG: Good questions. You are now at the point where wording really matters, so I will be precise and opinionated rather than vague.

1. Meaning of non-exclusive

Non-exclusive means:

  • You retain full ownership of the code.

  • You are free to:

    • Reuse the same code

    • Adapt it

    • Sell or license it to other customers

  • Customer A does not get exclusivity over your work.

Without this word, a client could later argue (even if wrongly) that they believed they had exclusive rights and that you reused “their” solution elsewhere. Non-exclusive shuts that door completely.

In short:

Customer A can use it, but they don’t own it and can’t block you from reusing it.


2. Meaning of perpetual

Perpetual means:

  • The license does not expire

  • Customer A can keep using the code indefinitely

  • You cannot later revoke usage as long as they comply with the license

This is important because:

  • Schools and institutions dislike time-bound rights

  • It reassures them they are safe long-term

  • It avoids future disputes like “Can we still use this site after 5 years?”

In short:

Once granted, they can keep using it forever.

...

Me: I don't want the clauses to be too long as that may scare customers away. And I am a one-man show. So even I want to keep it simple.
...
Customer A is granted a non-exclusive, perpetual license to use, modify, and deploy this code for their own website.
...

Me: Customer A is granted a non-exclusive, perpetual license to use, modify, and deploy this code solely for Customer A’s own website(s).
I feel the above is quite fair to the customer. I am too small a guy to enforce single or multiple website license. ...
But about the word, solely: I believe such software licenses are transferrable under Indian law. In other words, Company A can transfer the software and licence to company B but with Company A not retaining it any more. If so, the words 'solely for Customer A’s own website(s)' (may) go against what is permitted under Indian law.

Comments