Jonathan PetterssonFour years in programmatic and six in account management. I build reporting tools for colleagues and publish software for gaming communities, from the first practical problem through development and support.
I use AI extensively for implementation, while owning requirements, review and release decisions.
Preview a return to the base game while keeping downloaded mod files.
Explore the setup and recovery workflowAt WPP Media Sweden, I combine hands-on programmatic delivery with tools that help colleagues make sense of their campaigns.
A shared tool for a 30-person programmatic team
I built a shared reporting dashboard that brings client filters, pacing, KPIs, margins and buying patterns into one place, with views down to sites and geographic detail.
I arranged the reports, contacted The Trade Desk and secured the cloud access needed to connect S3 exports with GCP, BigQuery and Looker Studio. I continue to refine the workflow as the team's needs develop.
I also developed a separate Campaign Wrap-up tool at WPP for reviewing and communicating post-campaign results. It uses the dashboard's reporting data for a different task.
I turned a colleague's reporting need into a working local tool in one day, with an interface for loading and filtering DV360 and GA4 data.
A real hosting setup exposed an assumption in Windrose Mod Manager. The support conversation led to a change in the product.
Released Python app · hosting support
A user already had a working mod runtime from their hosting provider, but the manager blocked mods that depended on it.
I added an option to leave that runtime in place, published setup instructions and followed up on the remaining issues.
Read the support and product caseA private Unreal tool, a synthetic reporting demo and an ecommerce rebuild. Explore the problem, the implementation choices and the current scope of each project.
Private release candidate · UE 5.8 developer tool
A private Unreal tool for reviewing AI-requested editor changes, approving selected operations locally and inspecting their results.
Explore GhostLink
Synthetic demo · Reporting automation
From campaign rows to a reviewable report: Python calculates KPIs, retrieved guidance informs optional generation, and separate checks flag unsupported claims.
Explore the reporting demo
Protected staging · Ecommerce rebuild
An Astro storefront and custom WordPress/WooCommerce API, connecting product discovery with an eligible cart and checkout handoff.
Explore the storefrontReleased under my Vercadi creator alias. Hunted and UTAC explore reactive encounters, companion behaviour and the practical work of supporting a configurable game system.
Dynamic Ambushes & Revenge System · released BG3 mod
A released Baldur's Gate 3 systems mod where hostile territory pushes back through creature-type reputation pressure, reactive ambushes, and revenge escalation.
Explore the projectNexus snapshot Oct 15, 2026.
Ultimate Tactical AI Companions · released BG3 mod
A released Baldur's Gate 3 mod for assigning companion combat roles and issuing target orders, with host-controlled configuration and companion control handling.
Explore the projectNexus snapshot Oct 15, 2026.
Desktop apps for the unglamorous parts of modding: installation, server setup, troubleshooting and recovery.
Released Python app · actual screenshot
A Python desktop app connecting Steam Workshop modlists with client and server setup, including hosted profiles and recovery workflows.
Nexus snapshot Oct 15, 2026.
Released Python app · actual screenshot
A Python desktop app for reviewing and installing Subnautica 2 mods, with profiles, apply previews and manifest-based removal.
Nexus snapshot Oct 15, 2026.
Released Python app · actual screenshot
A Python desktop app for installing Windrose mods across local and hosted servers, with destination previews, backups and diagnostics.
Nexus snapshot Oct 15, 2026.
The compatibility builds use UE4SS-RE. My contribution is game-specific integration, compatibility work, verification, packaging and support.
Game-specific integration, compatibility packaging and support for Steam and EA App builds. The Nexus release documents supported builds and testing limits; runtime feedback for the newest EA profile remains pending.
Nexus snapshot Oct 15, 2026.
Game- and build-specific UE4SS compatibility work, verification, installation guidance and support. The Nexus page defines the current public package.
Nexus snapshot Oct 15, 2026.
Keeps an already-started manual workstation job running while the game is unfocused. Players still start and cancel work themselves.
Nexus snapshot Oct 15, 2026.
Published Windows application · Unreal Engine configuration
An offline tool for customising Unreal Engine settings through profiles, individual controls and reusable presets. Players can review proposed changes before applying them and restore backed-up configuration files.
Replaces my earlier game-specific Lossless Engine Tweaks releases.
Selected work in progress. These projects are separate from the public releases above.
Private development
A BG3 manager separating library inspection, load-order review and explicit apply actions.
Current work includes profile scanning, package ownership checks and managed import/replacement. Saving a local plan is separate from deploying or applying it. Smart Package provider observations remain preview-only; this is not a public release.
Private candidate
A desktop workbench for inspecting mod setups and reviewing proposed updates before installation.
The candidate includes setup analysis, acquisition/review and recovery work. Retail activation and write permissions remain locked pending game-specific qualification. Native UI and live provider acceptance are separate release gates.
Local development tool
Checks that an AI-assisted task stays in the intended repository and declared file scope.
Records the starting dirty state and checks the result against an explicit write boundary. It does not install mods, run games or provide an operating-system security sandbox.
Private prototype
Mixed-mod inspection, conflict analysis and staged deployment, with a secondary JSON-authoring workflow.
The prototype uses profiles and manifest-backed revert for supported mod families. Support is specific to those families; no public release is claimed.
Content reviewed October 7, 2026. Release statistics have their own snapshot dates. Explore the wider catalog on Nexus.
I enjoy learning through practical problems and making complicated topics easier to understand. Colleagues describe me as knowledgeable and approachable, and feel comfortable asking me questions.
Before programmatic, I spent six years in account management at UC, working with business customers, pricing and customer-specific solutions. That experience still shapes how I approach a brief: understand what someone needs, explain the options clearly and follow through.
Outside work, I build gaming mods and tools. I like turning an idea into something useful, seeing how people use it and improving it as I learn.
My contribution includes researching the problem, defining requirements, reviewing behaviour, checking results, packaging releases and supporting ongoing improvements. I work through unfamiliar implementation details as part of that process.