Open Enterprise Solutions (OES)

OES is a source-available, cross-platform low-code enterprise application platform written in C++17. It provides a fully integrated environment — compiler, bytecode interpreter, visual form designer, multi-database abstraction layer, and remote debugger — that allows developers to build line-of-business applications using a built-in scripting language with two syntax modes (VBS-style and CES-style), a rich set of 88 built-in functions, and 8 first-class business-object types (Catalog, Document, Enumeration, Constant, InformationRegister, AccumulationRegister, DataProcessor, Report).

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Key Features

• Integrated designer — metadata tree editor, form builder, code editor with syntax highlighting and autocomplete
• Bytecode compiler — two-pass compiler (lexer → parser → bytecode) producing 66-opcode bytecode; supports procedures, functions, modules, regions, and preprocessor directives (#ifdef/#define)
• Visual form system — 22 controls (TableBox, TextBox, ChartBox, GridBox, Notebook, ToolBar, etc.) rendered through wxWidgets; forms are described in metadata and instantiated at runtime
• Multi-database back end — Firebird (primary, embedded shipped with the distribution), PostgreSQL, SQLite, MySQL, ODBC; unified ibDatabaseLayer API across all drivers
• Remote TCP debugger — client/server architecture over TCP (default port 1650); supports breakpoints, step-over, step-into, variable inspection, tooltips, and live code patching
• Session management — multi-user sessions tracked in the system database; launcher, daemon, designer, enterprise, and codeRunner modes
• Role-based access control — access rights on objects and operations defined in the metadata configuration
• Source-available under PolyForm Noncommercial 1.0.0 — read it, build it, change it, run it, write configurations for it, teach from it, for any noncommercial purpose. Earning from it — in a business, as a service, inside a product you are paid for — needs a licence from the copyright holders. See LICENSE.md and NOTICE.md

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Screenshots

Screenshots will be added here. Contributions welcome.

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Quick Start

Windows

1. Install Visual Studio 2019 or 2022 with the Desktop development with C++ workload.
2. Clone the repository and initialise the wxWidgets submodule:

   git clone https://github.com/open-enterprise-solutions/enterprise.git
   cd enterprise
   git submodule update --init --recursive

3. Open enterprise.sln in Visual Studio.
4. Select configuration Debug|Win32 or Release|x64.
5. Build the solution (Ctrl+Shift+B). Binaries are placed in bin\<Platform>\<Configuration>\.
6. Run enterprise.exe or designer.exe from that folder.

macOS

CMake support is under development. The steps below describe the intended workflow once CMakeLists.txt is provided.

# Install dependencies
brew install cmake wxwidgets firebird-client postgresql

# Clone and initialise submodules
git clone https://github.com/open-enterprise-solutions/enterprise.git
cd enterprise
git submodule update --init --recursive

# Configure and build
cmake -B build -DCMAKE_BUILD_TYPE=Release
cmake --build build -j$(sysctl -n hw.logicalcpu)

Linux (Ubuntu / Debian)

CMake support is under development.

# Install dependencies
sudo apt update
sudo apt install -y build-essential cmake libwxgtk3.2-dev \
    libfirebird-dev libpq-dev libsqlite3-dev libmysqlclient-dev

# Clone and initialise submodules
git clone https://github.com/open-enterprise-solutions/enterprise.git
cd enterprise
git submodule update --init --recursive

# Configure and build
cmake -B build -DCMAKE_BUILD_TYPE=Release
cmake --build build -j$(nproc)

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Build Instructions

Windows — MSBuild

# From a Developer Command Prompt for VS
msbuild enterprise.sln /p:Configuration=Release /p:Platform=x64 /m

Output: bin\Win64\Release\

All Platforms — CMake

A top-level CMakeLists.txt needs to be created (tracked in the backlog). Once available:

cmake -B build \
      -DCMAKE_BUILD_TYPE=Release \
      -DwxWidgets_ROOT_DIR=src/3rdparty/wxWidgets
cmake --build build --parallel

wxWidgets Submodule

wxWidgets 3.3.2 lives at src/3rdparty/wxWidgets as a git submodule. After cloning:

git submodule update --init --recursive

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Project Structure

enterprise/
├── enterprise.sln            # MSBuild solution (9 projects)
├── Common.props              # Shared MSBuild properties (paths, platforms)
├── ConfigurationDefs.props   # Preprocessor definitions per configuration
├── LICENSE.md                # PolyForm Noncommercial 1.0.0 (source-available)
├── NOTICE.md                 # third-party licences, the wx fork, the LGPL past
├── docs/
│   ├── ARCHITECTURE.md       # Architecture deep-dive
│   ├── BUILD.md              # Detailed build instructions
│   ├── devops-playbook/
│   └── engineering-playbook/
└── src/
    ├── 3rdparty/
    │   └── wxWidgets/        # Git submodule — wxWidgets 3.3.2
    └── engine/
        ├── backend/          # Core engine DLL (compiler, DB, metadata, debugger)
        │   ├── compiler/     # Lexer, parser, bytecode, interpreter (ibCompileCode, ibProcUnit)
        │   ├── databaseLayer/# DB abstraction + 5 drivers (Firebird, PG, SQLite, MySQL, ODBC)
        │   ├── debugger/     # TCP debug server/client
        │   ├── metaCollection/  # Business object metadata classes
        │   │   └── partial/  # Catalog, Document, Enumeration, Constant, Registers, DataProcessor, Report
        │   ├── moduleManager/
        │   ├── propertyManager/
        │   ├── system/       # System manager, built-in functions
        │   └── utils/
        ├── frontend/         # UI DLL (wxWidgets controls, form renderer)
        │   ├── visualView/   # ibValueForm, 22 form controls
        │   │   └── ctrl/     # Individual control implementations
        │   ├── mainFrame/    # Main application window
        │   ├── docView/      # Document/view framework wrappers
        │   └── win/          # Windows-specific widgets and dialogs
        ├── enterprise/       # Enterprise runtime executable
        ├── designer/         # Designer/IDE executable
        ├── launcher/         # Launcher (connection chooser)
        ├── daemon/           # Background service
        ├── codeRunner/       # Script runner
        ├── classChecker/     # Static metadata checker
        └── simplePlugin/     # Example plugin

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Technology Stack

Layer	Technology
Language	C++17
GUI framework	wxWidgets 3.3.2
Primary database	Firebird (embedded)
Optional databases	PostgreSQL, SQLite, MySQL, ODBC
Build (Windows)	MSBuild / Visual Studio 2019+
Build (cross-platform)	CMake (planned)
License	PolyForm Noncommercial 1.0.0 — source-available, not open source

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Contributing

1. Fork the repository and create a feature branch from develop.
2. Follow existing naming conventions: ib prefix for public classes, m_ prefix for member variables, s_ for statics.
3. Match the existing code style (tabs, brace placement).
4. For new database queries use ibPreparedStatement instead of raw string formatting — this avoids the SQL injection patterns present in legacy code.
5. Submit a pull request against the develop branch with a clear description of the change.
6. The master branch is reserved for release-tagged commits.

Bug reports and feature requests are welcome via GitHub Issues.

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License

OES is source-available, not open source, under the PolyForm Noncommercial License 1.0.0. Copyright is held by Maxim Kornienko and Yurii Bulakh.

Free, and meant to be used: clone it, build it, break it, change it, run it on your own machine, write configurations for it, teach a course from it, write a thesis about it. No notification, no permission, no explanation owed to anyone.

Needs a licence from us: earning from it — running it in a business, providing a service with it, shipping it inside something you are paid for, forking it to ship a rival platform, or lifting a piece of it into a product of your own.

Two things those terms do not cover, both in NOTICE.md: releases up to 2026-08-22 went out under the LGPL 2.1 and stay available under it, and the wxWidgets-derived widget sources remain under the wxWindows Library Licence. Contributions: see CONTRIBUTING.md.