Professional Focus
Cloud data, workflow automation, and practical AI tooling
GCP + BQ reporting and data workflows
Delivery requirements to working tools
Public releases and user feedback
Jonathan Pettersson
Data, automation, and AI-assisted tooling for real workflows.
Programmatic specialist building reporting systems, cloud-backed workflows, and practical software.
My work connects campaign reporting, GCP/BigQuery, dashboard requirements, and AI-assisted prototyping. I also release public tools where reliability, documentation, and user feedback shape the product.
How I work: I use AI coding tools extensively for implementation and iteration. I define the requirements and safety boundaries, design the review scenarios, verify the results, and make the packaging and release decisions.
Selected Work
Data workflows, governed automation, and software delivery.
I translate business requirements into testable reporting logic, bounded developer tools, and documented public releases.
Case Study Reporting + GenAI
Campaign Wrap-up Workspace
Synthetic reporting demo with deterministic KPIs and grounded generation
A clean-room portfolio case study that turns structured campaign data into a reviewable wrap-up while keeping calculation, generation, and QA visibly separate.
PythonKPI logicRetrievalGrounding
- Validates a synthetic CSV before calculating delivery, efficiency, pacing, video, and revenue KPIs in Python.
- Uses retrieved reporting guidance plus optional generation, with a deterministic offline fallback.
- Checks report structure, numeric grounding, missing evidence, and recommendation support before review.
Business-to-technical translation, testable reporting logic, GenAI safeguards, and stakeholder-ready delivery.
Active Development UE 5.8 Developer Tool
GhostLink
Governed UE 5.8 editor tooling through Unreal's MCP plugins
A C++ UE 5.8 editor plugin for bounded project inspection and selected operations through Unreal's experimental Model Context Protocol and Toolset Registry plugins.
C++ pluginUnreal MCPDry-run + approvalAudit records
- Provides read-only project, asset, map, and dirty-package inspection before supported editor operations.
- Requires an explicit DryRun or Execute mode and an expiring one-shot local approval before mutating operations run.
- Records operations and validates operation-scoped backups by hash and size before supported saves of existing packages and maps.
Private repository; shown at capability level only. Focus: bounded editor operations, explicit approval, audit records, and backup evidence.
Released Work Software Releases
Public Workflow Tools
Safety-first tools released through GitHub and Nexus
Public desktop tools and systems mods show end-to-end ownership across requirements, AI-assisted development, packaging, documentation, release quality, user support, and iteration from feedback.
UX clarityDiagnosticsBackupsRelease quality
- Built several mod managers around previews, backups, diagnostics, and recoverable operations instead of blind file writes.
- Released BG3 systems mods with source repositories, documentation, and public Nexus reception data.
Product ownership, clear technical communication, release quality, and user feedback.
Released Tools
Public tools built for safe, recoverable workflows.
These Windows tools manage installations, servers, profiles, backups, diagnostics, and recovery. GitHub releases and current Nexus reception provide a public record of the work.
Released Desktop Tool
Windrose Mod Manager
Client, server, and hosted Windrose mod workflows
A Windows desktop app for managing Windrose mods safely across client installs, local servers, dedicated servers, and hosted FTP/SFTP targets.
- Unique DLs
- 10.1K
- Endorsements
- 182
Nexus stats synced Aug 26, 2026.
Archive reviewHosted syncBackupsDiagnostics
Release highlights
- Imports zip, 7z, rar, pak-only, loose-file, mixed, and multi-variant archives with pre-install review.
- Compares client, local server, dedicated server, and hosted state before applying sync actions.
Released Desktop Tool
Conan Mod and Server Manager
Conan Exiles Enhanced modlists, Workshop, servers, and recovery
A Windows manager for Conan Exiles Enhanced mods, Steam Workshop modlists, local dedicated servers, hosted FTP/SFTP servers, profiles, backups, and recovery.
- Unique DLs
- 1,042
- Endorsements
- 17
Nexus stats synced Aug 26, 2026.
SteamCMDHosted serversProfilesSafe uninstall
Release highlights
- Detects client, dedicated server, Workshop, SteamCMD, config, save, log, and hosted-server paths.
- Manages local pak libraries, Workshop cache, active load order, client/server parity, and restore-to-vanilla workflows.
Released Desktop Tool
Subnautica 2 Mod Manager
UE4SS and pak profile manager with manifest-backed recovery
A safety-first Windows mod manager for Subnautica 2 UE4SS and pak mods, built around import review, profiles, apply previews, and managed uninstall.
- Unique DLs
- 1,706
- Endorsements
- 23
Nexus stats synced Aug 26, 2026.
UE4SSPak bundlesProfilesRecovery
Release highlights
- Imports files, folders, zip, 7z, UE4SS runtime folders, Lua/C++ mods, and pak bundles with companion file detection.
- Supports Steam discovery, manual/Epic-style layouts, and experimental Game Pass WinGDK targeting.
Released Systems
Systems work used by public communities.
Hunted and UTAC use event-driven logic, host-aware settings, compatibility surfaces, and public documentation. Nexus reception tracks their use after release.
Released BG3 Mod
Hunted
A released Baldur's Gate 3 systems mod where hostile territory pushes back through creature-type reputation pressure, reactive ambushes, and revenge escalation.
- Unique DLs
- 5,629
- Endorsements
- 148
Nexus stats synced Aug 26, 2026.
Reactive ambushesReputation pressureChampion retaliationBG3MCM
Released BG3 Mod
UTAC
A released Baldur's Gate 3 companion AI control mod built around combat archetypes, tactical orders, host-authoritative settings, and safe enable/disable behavior.
- Unique DLs
- 6,739
- Endorsements
- 88
Nexus stats synced Aug 26, 2026.
9 archetypesTarget ordersNPC modeSpell policy
Additional Tooling
Experiments and private prototypes.
Smaller projects across web, desktop tooling, and configuration work. Private work stays at capability level; released work includes public links and reception data.
In Development Website Rebuild
Capitaurum Website
A precious-metals ecommerce rebuild with an Astro frontend, WordPress/WooCommerce data-contract planning, public REST endpoints, buyback rates, and sell-gold calculator direction.
In Development Desktop Tool
Tav Loadout Studio
A safety-first Baldur's Gate 3 loadout manager focused on profile scanning, load-order review, managed apply flows, restore evidence, diagnostics, and future Smart Package tooling.
Private Prototype Desktop Tool
Crimson Desert Compatibility Manager
A compatibility-first desktop tool prototype for supported Crimson Desert mod families, profile conflict analysis, staged deployment, rollback, and a secondary JSON authoring lane.
Released Series Config Mods
Lossless Engine Tweaks
A small Nexus series of clean Engine.ini performance tweaks focused on smoother streaming, async loading, shader-cache behavior, and reduced hitching without intentional visual downgrades.
- Series downloads
- 15K
- Endorsements
- 218
Nexus stats synced Aug 26, 2026.