Opshin Jetbrains Extension

[Proposal setup] Proposal title

Please provide your proposal title

Opshin Jetbrains Extension

[Proposal Summary] Budget Information

Enter the amount of funding you are requesting in ADA

85000

[Proposal Summary] Time

Please specify how many months you expect your project to last

3

[Proposal Summary] Translation Information

Please indicate if your proposal has been auto-translated

No

Original Language

en

[Proposal Summary] Problem Statement

What is the problem you want to solve?

JetBrains IDE users cannot develop Opshin smart contracts efficiently. While VS Code has an Opshin extension, JetBrains users has no Opshin support.

[Proposal Summary] Project Dependencies

Does your project have any dependencies on other organizations, technical or otherwise?

No

Describe any dependencies or write 'No dependencies'

The plugin depends on the Opshin compiler (version ≥0.14.1) being installed in the user's Python environment. The plugin will use the IntelliJ Platform SDK and requires Python support in the target IDE. No third-party licenses are required beyond the open-source tools mentioned.

[Proposal Summary] Project Open Source

Will your project's outputs be fully open source?

Yes

License and Additional Information

Apache 2.0

[Theme Selection] Theme

Please choose the most relevant theme and tag related to the outcomes of your proposal

Developer Tools

[Campaign Category] Category Questions

Mention your open source license and describe your open source license rationale.

Apache 2.0 license. This license is standard in the Cardano ecosystem, allows both personal and commercial use, and enables the community to contribute improvements while maintaining clear attribution requirements.

How do you make sure your source code is accessible to the public from project start, and people are informed?

The GitHub repository will be public from day one with the Apache 2.0 license clearly displayed. I will make regular commits throughout development showing progress. The repository README will include installation instructions, contribution guidelines, and links to documentation.

How will you provide high quality documentation?

I will create comprehensive documentation using VitePress including: installation guide with screenshots, usage instructions for enabling Opshin support via file shebang markers, configuration of the Opshin CLI path, explanation of error messages and how to resolve them, and examples of common development workflows. Documentation will be hosted publicly and linked from both the repository and JetBrains Marketplace listing.

[Your Project and Solution] Solution

Please describe your proposed solution and how it addresses the problem

The Opshin JetBrains Extension addresses the tooling gap by implementing three core features:

• Syntax highlighting leverages the existing Python language support in JetBrains IDEs since Opshin uses valid Python syntax. The plugin recognizes Opshin contract files through the #!opshin shebang marker and applies appropriate highlighting without requiring a custom parser.
• Real-time linting runs the Opshin compiler in the background to validate contracts as developers write code. Using JetBrains' ExternalAnnotator API, the plugin executes opshin eval on file changes, parses compiler output for errors, and displays them as inline annotations. This provides immediate feedback on type errors or compilation issues without manual checking.
• CLI integration adds a "Build Contract" action accessible via toolbar or context menu. This executes opshin build on the current file, displaying compilation results in an IDE console. The plugin determines the script type (spending/minting) from the shebang or uses a sensible default.

The implementation uses Kotlin and the IntelliJ Platform SDK. By relying on the external Opshin compiler rather than reimplementing validation logic, the plugin remains maintainable as Opshin evolves.

[Your Project and Solution] Impact

Please define the positive impact your project will have on the wider Cardano community

This project directly addresses the tooling deficiencies identified in Cardano developer surveys by providing professional IDE support for a growing segment of developers. Python developers using JetBrains tools will be able to write Opshin smart contracts with the same efficiency as VS Code users, reducing context switching and manual compilation steps.

The plugin will be distributed through the JetBrains Marketplace for easy installation and automatic updates. Success will be measured by the plugin successfully compiling example Opshin contracts from the official repository, providing error annotations that match the Opshin compiler output, and working reliably across different JetBrains IDEs with Python support.

All outputs will be open source, allowing the community to extend support or adapt the approach for other Cardano smart contract languages.

[Your Project and Solution] Capabilities & Feasibility

What is your capability to deliver your project with high levels of trust and accountability? How do you intend to validate if your approach is feasible?

I am Tolga Yaycı, an experienced software engineer with a strong background in developer tooling and IDE extensions. I hold a Bachelor's degree in Computer Engineering and have successfully delivered numerous developer tools across prominent blockchain ecosystems including Solana, Arbitrum, Stellar, and Internet Computer.

My recent IDE extension work includes the Arbitrum Stylus VS Code Extension (https://marketplace.visualstudio.com/items?itemName=tolgayayci.stylussuite),,) demonstrating my expertise in integrating blockchain toolchains with modern IDEs. I've also built developer tools like the Wizard Arbitrum Stylus Playground (https://thewizard.app/),,) Dfinity DFX GUI, and Soroban CLI GUI, showcasing my ability to create intuitive interfaces for complex blockchain development workflows.

My experience with the IntelliJ Platform SDK, combined with my track record of delivering production-ready developer tools, ensures I can successfully implement the Opshin JetBrains Extension. The technical approach leverages existing components - JetBrains' Python support and the Opshin CLI - minimizing risk while maximizing compatibility.

[Milestones] Project Milestones

Milestone Title

Core Plugin Structure and Syntax Support

Milestone Outputs

• Fully functional JetBrains plugin that recognizes Opshin contract files via #!opshin shebang marker
• Complete Python syntax highlighting support for Opshin smart contracts
• Public GitHub repository with Apache 2.0 license and initial project structure
• Initial VitePress documentation site with getting started guide
• Basic plugin configuration and settings infrastructure

Acceptance Criteria

• Plugin successfully loads without errors in JetBrains IDEs with Python support
• Example Opshin contracts from official repository display with proper syntax highlighting
• Repository includes comprehensive README with basic usage instructions
• Documentation site is publicly accessible and contains installation steps
• Plugin recognizes and properly handles Opshin file markers

Evidence of Completion

• Public GitHub repository link with complete source code
• Multiple screenshots showing syntax highlighting in action across different file types
• Live documentation site URL with accessible content
• Installation package ready for manual testing

Delivery Month

1

Cost

25000

Progress

30 %

Milestone Title

Linting and CLI Integration

Milestone Outputs

• Real-time error checking functionality via Opshin compiler integration
• Inline error annotations displayed directly in the editor with descriptive messages
• Build Contract action for one-click compilation accessible from toolbar
• Dedicated IDE console window for compilation output and results
• User-configurable settings for Opshin executable path and preferences
• Enhanced documentation covering all new features

Acceptance Criteria

• Type errors and compilation issues appear as underlined code with detailed hover messages
• Valid contracts show no errors and pass all validation checks
• Build action successfully compiles contracts and generates expected outputs
• Error output includes clickable links to exact source code locations
• Settings panel allows configuration of all plugin preferences
• Linting triggers automatically on save or after brief idle period

Evidence of Completion

• Comprehensive video demonstration of linting in real-world scenarios
• Multiple screenshots of error annotations and successful build output
• Updated documentation covering all implemented features
• Test results showing successful compilation of example contracts
• Configuration screenshots demonstrating settings functionality

Delivery Month

2

Cost

25000

Progress

60 %

Milestone Title

CLI Integration and Release Preparation

Milestone Outputs

• Build Contract action for one-click compilation accessible from toolbar and context menu
• Dedicated IDE console window for compilation output and results
• Error output parser with clickable links to source locations
• Plugin icon and JetBrains Marketplace metadata preparation
• Complete user settings panel for all plugin configurations
• Version 1.0.0 release candidate with all features integrated

Acceptance Criteria

• Build action successfully compiles contracts and generates expected outputs
• Console displays clear compilation results with proper formatting
• Error links navigate directly to problematic code locations
• Plugin passes JetBrains compatibility verification
• All features work together seamlessly without conflicts
• Release candidate ready for marketplace submission

Evidence of Completion

• Video showing complete build workflow from code to compiled output
• Screenshots of console output with successful and failed builds
• Test results from JetBrains Plugin Verifier
• Complete feature integration testing documentation
• Release candidate package ready for distribution

Delivery Month

3

Cost

25000

Progress

80 %

Milestone Title

Project Close Out

Milestone Outputs

• Comprehensive Project Close Out Report documenting all achievements
• Professional Project Close Out Video showcasing complete functionality
• Final documentation review with all updates and improvements
• Complete community handover materials including contribution guide and future development roadmap
• Plugin successfully submitted to JetBrains Marketplace for public distribution
• Final verification and confirmation of all previous milestone completions

Acceptance Criteria

• Detailed report comprehensively documents all project outcomes and learnings
• Video clearly demonstrates all plugin features with real examples
• Plugin successfully listed and available on JetBrains Marketplace
• Documentation is complete with comprehensive troubleshooting guide
• All source code is properly documented with inline comments
• Community can easily understand how to contribute and extend the plugin

Evidence of Completion

• Published close out report document with all sections completed
• Public video link hosted on YouTube
• Active JetBrains Marketplace listing URL with plugin available
• Final GitHub repository state with all commits and documentation
• Screenshots of plugin running in production environment
• Community feedback channels established and documented

Delivery Month

4

Cost

10000

Progress

100 %

[Final Pitch] Budget & Costs

Please provide a cost breakdown of the proposed work and resources

Total Funding Requested: 85,000 ADA

0.93 USD per ADA (currently)

(120 USD/hour × 8 hours/day × 5 days/week × 14 weeks) = 67,200 USD ~= 72,500 ADA + 12,500 ADA for volatility = 85,000 ADA

This covers ~3 months of full-time development by a single experienced developer, providing exceptional value for a tool that will serve the Cardano ecosystem.

Breakdown:

Development (14 weeks): 72,500 ADA

Volatility buffer: 12,500 ADA - Protection against ADA/USD fluctuation

All funds are allocated to development work. No marketing or promotional costs included.

[Final Pitch] Value for Money

How does the cost of the project represent value for the Cardano ecosystem?

This project delivers a permanent addition to Cardano's developer infrastructure for a one-time cost. The JetBrains plugin fills a specific gap identified by the developer community, enabling Python developers to use their preferred IDE for smart contract development.

The implementation approach maximizes value by reusing existing tools - the Opshin compiler for validation and JetBrains' Python support for editing features. This focused scope ensures all funding translates directly into usable functionality.

At $120/hour, the rate reflects skilled IDE development work while remaining competitive for technical blockchain tooling. The project delivers a complete, documented, and publicly distributed tool that will serve developers indefinitely without recurring costs.

By providing professional IDE support for Opshin, this project lowers the barrier for Python developers to build on Cardano, directly addressing the tooling priorities established through community surveys. The open-source nature ensures the investment benefits the entire ecosystem and can be maintained by the community long-term.

[Required Acknowledgements] Consent & Confirmation

Terms and Conditions:

Yes