From half-built liability to a platform that earns its keep
How GB-Strategies turned a stalled, six-figure build into a connected, cost-transparent operating platform with Oakfyn's TechOS and BuildOS.
- Client
- GB-Strategies
- Services
- Oakfyn TechOS + BuildOS
- Engagement
- Interim CTO · 6 months (ongoing)
- Focus
- Data, APIs, workflows, cost control, security
The situation Oakfyn walked into
Six months ago, GB-Strategies didn't have a technology problem they could name. They had the symptoms: an app that was perpetually almost done, a platform that lived on an island while the rest of the business ran on other tools, and an invoice trail that kept climbing without the product getting closer to launch. By the time Oakfyn stepped in as Interim CTO, a six-figure sum had already been spent on development that produced no usable business value.
If that sounds familiar, it usually means the same three things are true at once:
Half-finished product
A build scoped feature-first instead of foundation-first, so each new piece sat on sand.
Disconnected stack
The platform couldn't talk to the tools the business actually used, so people worked around it instead of through it.
Opaque cost
Spend was visible only as a total, never as a map of what each euro was buying.
Diagnosis before code
Oakfyn's first move was deliberately not to write features. The team started by separating two questions GB-Strategies' previous spend had quietly blurred: where does this product genuinely need AI, and where does it just need solid engineering done properly? Treating those as the same thing is one of the fastest ways to burn a budget — you pay premium complexity for problems a clean API and a well-modelled database would have solved outright.
That validation step ran continuously, not once. Every workstream was checked against a simple test: does this move the business forward, or does it just add surface area we'll pay to maintain?
What the Oakfyn team built
With the foundation diagnosed, TechOS and BuildOS were deployed in sequence — TechOS to set the technical operating model, BuildOS to execute the build against it.
Structured the data foundation
Restructured the data so the platform had a single, trustworthy source of truth instead of fragments stitched together per feature.
Created real APIs
Built the APIs the previous effort never created, so the platform could finally connect to the tools GB-Strategies already relied on — ending the island.
Engineered workflows
Engineered the workflows around how the business actually operates, so the software drives the process rather than fighting it.
Made cost transparent
Turned spend from a single opaque number into a line-by-line map, and cut development cost by removing work that wasn't buying outcomes.
Designed for security
Built security in from the foundation rather than bolting it on after launch, when retrofitting is most expensive and least effective.
We came in to a build that was burning money and going nowhere. We left them with a platform that actually moves the business: connected, secure, and finally honest about what every euro is doing.
- −38%
- Dev cost reduced
- 9
- Tools now connected
- 3×
- Faster time-to-value
The qualitative shift is the part GB-Strategies feels day to day: the platform went from something that constrained the business to something that propels it. Spend is now a decision made with eyes open, the product sits inside a connected stack, and the foundation can carry whatever gets built on top of it next.
Why this approach worked
The previous spend failed because it optimised for visible features over invisible foundations. Oakfyn inverted that: data, connectivity and cost-clarity first; features on top of a base that could hold them. The discipline of repeatedly asking “AI or just good engineering?” kept the budget pointed at outcomes instead of novelty — and building security in from the start removed a category of expensive, launch-blocking rework before it could happen.
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Recognise your own project here?
If you have a build that's almost done, a platform that won't connect, or spend you can't fully account for, that's the exact situation TechOS and BuildOS were built for.