Context / ETM.next
ETM.next Agent Context
A source-backed product context pack that makes ETM.next concepts, terminology, and evidence usable by both people and AI agents.
Work / build / learn
Things I’ve made move.
The complete connected record: professional projects, credentials, products, repositories, systems, and ideas from 2014 to now. Newest first.
Complete timeline
2014—now · connected public record
94 milestones shown
01 / Portfolio
viggomeesters.com becomes an evidence-first portfolio.
The site is reorganised around working software, public source, explicit proof, and a clearer professional through-line: data migration plus agent systems.
02 / Method
Evidence-Based Work
A practical argument for treating screenshots, tests, readbacks, and source links as part of delivery—not as decoration after the fact.
03 / Agent context
A source-backed context pack for buying a home in the Netherlands.
The Nederlandse Huizenkoop Agent Context turns a fragmented process into versioned, reviewable guidance with explicit source and freshness metadata.
04 / Delivery system
Go Workflow Stack
A public reference implementation for turning goals into bounded tasks, gates, ledgers, and verifiable shipping evidence.
Starting point / Delivery
Go Project Template
A minimal public repository contract for beginning agent-assisted projects with goals, tasks, gates, and workflow state close to the code.
05 / Architecture
Database types for agent-first systems
A decision guide for choosing storage by access pattern, auditability, and operational constraints instead of defaulting to one fashionable database.
06 / Data structures
JSONL Vault Spike
A bounded experiment in append-friendly, inspectable data structures for agent-first knowledge systems.
Knowledge / Read model
Personal Knowledge System and VaultLayer become one inspectable stack.
The system map explains capture, structure, validation, retrieval, and agent interfaces; VaultLayer adds a local-first read model over Markdown.
07 / SAP delivery
SAP knowledge becomes typed, sourced agent context.
SAP Agent Context packages functional design, field mapping, migration, workflow, integrations, and analytics guidance without customer content.
08 / Knowledge tooling
Mega Vault Viewer
A read-only browser for large markdown vaults, designed to make structure and content navigable without turning the viewer into another editor.
App / Compensation
Normalized Salary Calculator
A focused browser calculator for comparing compensation packages on consistent yearly, monthly, and hourly terms.
09 / Obsidian
Complex files become inspectable inside the vault.
A family of read-only Obsidian viewers for Alteryx, XML, YAML, CSV, JSONL, EML, and other structured formats.
10 / Agent workflow
The workflow becomes routable, reusable, and multi-agent.
Hermes, Codex, and reusable skills connect a command bus to repo context, durable procedures, and proof-first completion gates.
McCoy / Creator & tooling developer
Alteryx Flow Agent Toolkit
An internal reusable toolkit for agent-assisted Alteryx flow development, combining generation, validation, templates, documentation, and agent procedures.
McCoy / Data Migration Consultant
Hitachi Construction Machinery Europe
S/4HANA data migration and load validation for HCME, delivered as an external McCoy engagement.
11 / Starter
Life OS Starter
A plug-and-play Obsidian vault that gives people a practical starting point for markdown-first knowledge work with agent support.
McCoy / Tooling developer
SDP Dashboard
An internal browser-based dashboard that makes the Smart Data Platform methodology, steps, and supporting material easier to navigate.
12 / Contract
Vault Schema
A machine-readable schema contract, template set, and validation guard for keeping structured Obsidian vaults dependable.
App / Visualizer
Money Shower
A real-time salary visualizer that makes the passing value of working time tangible.
App / Health
Dimma
A mobile-first migraine tracker designed to capture an event with as little friction as possible.
App / Planning
Visual PM
A visual project-management surface for making work, ownership, and progress easier to scan.
13 / Shared tools
Agent Scripts
Repeated agent operations move out of individual repositories and into a shared, inspectable toolkit.
14 / Capture
Obsidian meets Raycast.
A focused extension for capturing and retrieving Obsidian notes without breaking flow to navigate the vault manually.
McCoy / Tooling developer
Alteryx Template Flows
Reusable Alteryx transformation-flow templates for SAP data migration delivery.
McCoy / Contributor & tooling developer
Smart Data Platform
Contribution to McCoy’s SAP data migration methodology and internal documentation hub, with an emphasis on making delivery knowledge usable in tools.
McCoy / Data Migration Consultant
Gemeente Groningen
Financial migration from DaFinci to S/4HANA, including subsidy objects, delivered as an external McCoy engagement.
McCoy / Data Migration Consultant
Universiteit Utrecht
S/4HANA HR data migration delivered as an external McCoy engagement.
Credential / DataCamp
Data Transformation in Alteryx
Data and automation credential, preserved in the public learning record.
Credential / DataCamp
Data Preparation in Alteryx
Data and automation credential, preserved in the public learning record.
Credential / DataCamp
Introduction to Alteryx
Data and automation credential, preserved in the public learning record.
15 / Data migration
Minimal ETL Modeler starts with one stubborn idea.
Data mapping and validation should be understandable to the people doing the migration. The project grows into a browser-local workbench for visual transforms, QA, and accepted/rejected exports.
App / Family planning
Kraamweek
A focused browser planner for coordinating the practical details of a newborn week.
Credential / DataCamp
Intermediate Python
Data and automation credential, preserved in the public learning record.
Aiden / Data Migration Consultant
Cramo Fleet
Migration from IBS to S/4HANA Private Cloud across materials, assets, and related fleet objects for Boels Cramo.
Aiden / Data Migration Consultant
LC Packaging NL
S/4HANA on-premise to S/4HANA Private Cloud migration for LC Packaging.
Aiden / Authorization Consultant
Mepal
Authorization consulting for an S/4HANA Public Cloud implementation.
Aiden / Data Migration Consultant
Cramo Baltics
Financial-object migration from IBS to S/4HANA Private Cloud for Boels Cramo in the Baltic region.
Credential / DataCamp
Introduction to Python
Data and automation credential, preserved in the public learning record.
Aiden / Data Migration Consultant
Cramo Sweden & Norway
Financial-object migration from IBS to S/4HANA Private Cloud for Boels Cramo in Sweden and Norway.
Aiden / OKR Coach
OKR Coaching
Coaching and supporting the second implementation phase of Objectives and Key Results within Aiden.
Credential / Workpath
OKR Basics
Professional practice credential, preserved in the public learning record.
Credential / Google Career Certificates
Foundations of Project Management
Professional practice credential, preserved in the public learning record.
Aiden / Data Migration Consultant
Boels Fleet NL
Migration from Infor InSpHire to S/4HANA Private Cloud across materials and assets for the Dutch Boels fleet.
Aiden / Data Migration Consultant
Cramo Finland
Financial-object migration from IBS to S/4HANA Private Cloud for Boels Cramo in Finland.
Credential / SAP
Sales 2023 - SAP S/4HANA Cloud - Public Edition - SAP Certified Application Associate
SAP credential, preserved in the public learning record.
Credential / SAP
SAP Analytics Cloud - SAP Certified Application Associate
SAP credential, preserved in the public learning record.
Aiden / iRPA Developer
RPA Invoicing for LiveKindly
Implementation of SAP Intelligent Robotic Process Automation for invoicing.
Aiden / Initiator & designer
Traineeship 2.0
Initiated and redesigned Aiden’s traineeship, evolving its first version into a more deliberate second programme.
Credential / SAP
New Employee Business Partner Model in SAP S/4HANA
SAP credential, preserved in the public learning record.
Credential / Aiden Academy
Conflictoplossing
Professional practice credential, preserved in the public learning record.
Credential / Aiden Academy
Focusing Skills
Professional practice credential, preserved in the public learning record.
Credential / DataCamp
Intermediate SQL
Data and automation credential, preserved in the public learning record.
Credential / SAP
Guide Your SAP S/4HANA Project to Success
SAP credential, preserved in the public learning record.
Credential / SAP
Information Security Management in a Nutshell
SAP credential, preserved in the public learning record.
Credential / Aiden Academy
Feedback geven en ontvangen
Professional practice credential, preserved in the public learning record.
Credential / DataCamp
Introduction to SQL
Data and automation credential, preserved in the public learning record.
Credential / Aiden Academy
Lean Management - Green Belt
Professional practice credential, preserved in the public learning record.
Credential / DataCamp
Introduction to Statistics
Data and automation credential, preserved in the public learning record.
Credential / SAP
Building Tomorrow’s ERP with SAP S/4HANA
SAP credential, preserved in the public learning record.
Credential / DataCamp
Understanding Data Visualization
Data and automation credential, preserved in the public learning record.
Credential / Aiden Academy
Lean Management - Orange Belt
Professional practice credential, preserved in the public learning record.
Credential / DataCamp
Understanding Data Topics
Data and automation credential, preserved in the public learning record.
Credential / DataCamp
Understanding Cloud Computing
Data and automation credential, preserved in the public learning record.
Credential / DataCamp
Understanding Machine Learning
Data and automation credential, preserved in the public learning record.
Credential / Aiden Academy
Lean Management: Yellow Belt
Professional practice credential, preserved in the public learning record.
Credential / DataCamp
Understanding Data Engineering
Data and automation credential, preserved in the public learning record.
Credential / DataCamp
Understanding Data Science
Data and automation credential, preserved in the public learning record.
Brandsom / Developer
Automated Content Generator
Developed an internal generator for automating product-content creation at Brandsom.
GGZ Ecademy / Developer
Learning Technology Vision
Developed a future vision and development roadmap for the GGZ Ecademy learning-management environment.
Credential / Wärtsilä Voyage
Innovation Award 2022
Foundations credential, preserved in the public learning record.
Avans / Project lead & Mendix developer
Warehouse Management System — part 2
Led the second development phase of a Mendix warehouse-management system, adding new operational features.
Avans / Designer
Veilig Op Reis tas
Designed a practical physical product—the VORtas—around an explicit value-creation brief.
Avans / Designer
Special Events for Withlocals
Designed a new “Special Events” event format for Withlocals.
Avans / Researcher
ZES Battery Container
Researched whether a Wärtsilä battery container could be used effectively at a construction site.
Credential / IBM
Python for Data Science, AI & Development
Data and automation credential, preserved in the public learning record.
Credential / IBM
Data Science Methodology
Data and automation credential, preserved in the public learning record.
Credential / IBM
Data Science Orientation
Data and automation credential, preserved in the public learning record.
Avans / Designer
Value Proposition Design for De Uitvindfabriek
Created a Value Proposition Design for a new service at De Uitvindfabriek.
Avans / Data analyst
Customer Satisfaction Analysis
Analysed which attributes most strongly influenced customer satisfaction for Algorithmic Perfumery.
Brabant Water / Researcher & innovator
Serious Game for Agile Working
Researched and developed a serious-game approach for increasing awareness of agile development at Brabant Water.
Avans / Scrum master & Mendix developer
Warehouse Management System — part 1
Scrum-led and developed the first phase of a Mendix warehouse-management system.
Avans / Project lead & researcher
Culture Research at Oriëntal Green House
Researched organisational culture, structure, and processes at Oriëntal Green House.
Credential / Mendix
Rapid Developer
Foundations credential, preserved in the public learning record.
Credential / Hogeschooltaal
Nederlands B2
Foundations credential, preserved in the public learning record.
Fontys / Event organiser
Business Academy Event
Organised the Business Academy Event as an internal Fontys project.
Versteijnen Logistics / Developer
Optimize Data Entry at Versteijnen Logistics
Improved data-processing speed and consistency with AutoHotkey automation.
Credential / Google Career Certificates
Technical Support Fundamentals
Professional practice credential, preserved in the public learning record.
Fontys / Developer
Handlefy Storage Application Database
Designed the relational database for the Handlefy 1.0 storage application.
Fontys / Process analyst
BPMN Goods Documents at Versteijnen Logistics
Mapped and improved the goods-received document flow using BPMN.
Credential / Microsoft
Excel Specialist 2013
Foundations credential, preserved in the public learning record.
Gors / Developer
Optimize Banking Process at Gors
Developed AutoHotkey automation for the organisation’s banking process.
Scalda / Researcher
ProActive Banking Implementation Research
Researched the implementation of the ProActive banking module at Gors.
Gors / Developer
Optimize Creditor Process at Gors
Improved the creditor process with ProActive templates.
The line continues
Built work over borrowed claims.
New projects, public repositories, useful writing, and meaningful career changes can join the timeline when there is something concrete to show.