# Open Source

1. **Optimization**
   * *Description*: Enables the Solidity optimizer when activated.
2. **Optimizer Runs** (Integer)
   * *Definition*: Estimated number of contract executions over its lifetime.
3. **Solidity Version** (Compiler)
   * *Format*: Semantic versioning (e.g., ^0.8.20).
4. **License**
   * *Common Options*:
     * MIT (Most permissive)
     * GPL-3.0 (Copyleft)
     * Apache-2.0 (Patent protection)
     * UNLICENSED (Not recommended for open-source)

## 📺CORE Open-Source Development Tutorial

{% embed url="<https://www.youtube.com/watch?v=MiZkJJTwL4k>" %}

First, you need to copy the source code on the platform's admin token page.

<figure><img src="/files/vQYuQEzUhOrJ5FSLsbUO" alt=""><figcaption></figcaption></figure>

Access the Core chain to verify the open-source code. Follow the steps below to deploy your contract and select the parameters as shown in the diagram.

<figure><img src="/files/zZ9OZ8LHybdnf2ywzdQz" alt=""><figcaption></figcaption></figure>

Copy the open-source parameter panel source code and input the corresponding constructor parameters into the source code. To remove ads from the contract code, simply delete the platform URL at the top.

**Note:** This platform supports open-sourcing without requiring constructor parameters. If the blockchain explorer auto-generates them, clear the parameter field.

<figure><img src="/files/HJGGTlCYvRwYnLiJ4ijp" alt=""><figcaption></figcaption></figure>

Select "Yes" for Optimization.

<figure><img src="/files/lK5H1Hn437CgBji4xG1o" alt=""><figcaption></figcaption></figure>

After completing the setup, click **"Verify and Publish"** below to complete the open-source process.

<figure><img src="/files/A7hFSDwyjhRVx7g2VGaE" alt=""><figcaption></figcaption></figure>

***

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> ⚠️ **Risk Warning & Disclaimer**
>
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