Most agency case studies show pretty videos. The buyer's question:
did this actually work? never gets answered. Lumaris's case studies
start with the number.
Antonio runs one of the largest full-stack development YouTube
channels. 420K subscribers. Premium sponsorship inventory. Audience
consists of professional developers building real applications.
The problem most agencies introduce on a channel like this isn't
quality, it's accuracy. A demo that uses a deprecated React pattern
or a TypeScript signature that wouldn't compile creates a
comments-section disaster the host has to clean up. The hidden cost:
the host becomes the technical editor.
What Lumaris produced
We produce Antonio's sponsored demo segments end-to-end. The brief
is technical - APIs, CLIs, database integrations, full-stack feature
builds. The deliverable includes the demo video, custom thumbnails,
short-form social cuts, and the technical validation receipt
confirming what was checked.
—Sponsored demo segments (mid-roll, full integration with
episode topic)
—Custom thumbnails optimized for Antonio's channel design system
—Short-form cuts for cross-platform distribution
—Dev Validation Receipt per video (delivered alongside .mp4)
Measurable result
99% viewer retention through intro sections, meaning Antonio's
audience doesn't drop off during the sponsorship segment, which is
what every demo video's editor is actually selling. The average
sponsorship segment retention rate on YouTube hovers around 60–70%
on educational content. 99% is two standard deviations above the
platform norm.
13.4% click-through rate on sponsored segments. The benchmark for
educational technical content is 2–7%. Lumaris-produced segments hit
13.4% consistently. That's 2–7× the industry baseline.
50× increase in social impressions across short-form cuts in the
first 90 days of the engagement. Antonio's content has compounding
distribution because the short cuts continue to surface across
platforms long after the primary upload.
Active retainer client 0:59
Polaris Intro Short
Short-form / Social
Active retainer client 4:54
Polaris Intro
Tutorial
Active retainer client 5:00
Resonance Intro
Tutorial
Active retainer since 2024. Production cadence: continuous sponsored
content production aligned to Antonio's monthly release schedule.
"
They specifically tailor their services to my needs, my brand, and my audience.
Thu Vu produces long-form educational technical content for a
YouTube channel focused on data and AI engineering. The editorial
complexity isn't surface-level (b-roll, sound design), it's
structural. A 30-minute educational video has 30 distinct concept
introductions, each requiring visual and pacing decisions that can
lose the audience if executed poorly. The prior agency relationship
was technically capable but operationally slow. Revisions consumed
time better spent on next-content planning.
What Lumaris produced
Long-form technical educational videos. Concept visualization.
Pacing for sustained 30+ minute viewer attention. Multi-format
export for cross-platform distribution.
—Direct collaboration with Thu Vu's editorial workflow
Measurable result
40% reduction in editing revision time. The first draft arrived
structurally aligned with Thu Vu's editorial preferences,
eliminating the 2–3 revision cycles required to land structure with
the previous editor.
100% on-time delivery rate across the engagement. This sounds like a
baseline expectation. In B2B video production, it isn't. Late
delivery is industry-standard. Hitting 100% over a multi-video
engagement is operational discipline, not luck.
"
The team is exceptional at understanding my content and producing high-quality edits to my videos.
Engagement period: January 2025 – February 2026. Engagement complete. Thu
Vu is no longer an active retainer client.
Calibration edit example
What a Calibration actually produces
CodeScene approached Lumaris with footage. Before any retainer
conversation, our editors produced five distinct executions in
CodeScene's brand language. Five styles. Same source material. Five
different editorial philosophies.
For paid customer engagements, the Calibration produces three
executions. For CodeScene, all five are presented here because the
visual range across styles demonstrates how editorially distinct each
cut can be while remaining on-brand.
Below are all five CodeScene Calibration variants. All produced in
CodeScene's brand language. Each built with a different level of
seriousness, dynamics, speed, tempo, and feel.
CodeScene Calibration Edit - Style 01
CodeScene Calibration Edit - Style 02
CodeScene Calibration Edit - Style 03
CodeScene Calibration Edit - Style 04
CodeScene Calibration Edit - Style 05
All five videos remain CodeScene's. The Calibration mechanic is
non-extractive, the client keeps the work regardless of what happens
next. If they continue to a retainer, the €2,500 credits toward Month 1.
If they don't, they keep the videos.
This is the entry point to every Lumaris engagement. Before a retainer
is signed, before a production schedule is set, the editorial style is
locked.
14 engineering review rounds eliminated across 6 videos
hidden-review-cost.calc
14 review rounds × 2+ hours per round (minimum)= 28+ hours of direct engineering/DevRel/marketing timePlus: context-switching cost14 rounds × ~30 min reorientation per workflow re-entry= 7+ hours of productivity loss before/after each reviewPlus: concept-explanation overheadEach round requires guiding the editor through corrections~1 hour average to explain WHY a correction is needed= 14+ hours of editorial education time──────────────────────────────────────────Total internal time absorbed: 49+ hours minimumAt €100/hour fully-loaded: €4,900+At €150/hour fully-loaded: €7,350+Same 6-video scope produced by Lumaris:0 engineering review rounds0 hours of engineering time€0 hidden cost──────────────────────────────────────────
Anonymized at client request. The pattern is industry-typical.
A developer tools company engaged us to produce six videos. The
agency they had used previously required 14 cumulative engineering
review rounds across that scope, between two and three rounds per
video.
Each review round consumed at least two hours of internal time. A
senior engineer reading the technical claims. A DevRel team member
flagging terminology drift. A marketing manager translating between
editorial language and engineering correctness. None of that time
appears on the video invoice. All of it appears in engineering
velocity loss.
The Dev Validation Receipt mechanism eliminates the need for
client-side engineering review. The validation happens internally
before the draft leaves our studio. The client receives the receipt
naming what was checked and what was corrected. Engineering team never
enters the loop unless the client wants them to.
The 6-video scope completed without a single engineering review round
on the client side. Engineering team back on product. Marketing team
back on distribution. Content shipped on schedule.
The cost isn't on the video invoice. It's in the engineering hours
your team is already paying. Lumaris's pricing replaces that hidden
cost with a visible one, at a lower total.
lumaris_dev-validation-receipt.log
═════════════════════════════════════════════LUMARIS STUDIO · DEV VALIDATION RECEIPT═════════════════════════════════════════════
Client: [Client redacted]
Project: Multi-format content system / 14-round validation
Delivered: 2024-08
Editor: Lumaris Studio
Validator: Lumaris QA─────────────────────────────────────────────WHAT WE CHECKED─────────────────────────────────────────────✓ Hook strength vs. audience intent (per video)
✓ Audio consistency across batch
✓ Thumbnail–title alignment
✓ Retention curve mapped to script decisions
✓ Card + end-screen placement
✓ Description SEO structure
✓ B-roll density and pacing alignment
─────────────────────────────────────────────FLAGS RAISED─────────────────────────────────────────────[Round 03]
Issue: Hook delayed 11 seconds - misaligned with search intent
File: [filename redacted]
Action: Re-edit flagged, script revised, re-delivered in 48h
[Round 07]
Issue: Audio inconsistency across 4-video batch - volume floor mismatch
File: [batch redacted]
Action: Normalised across full batch, re-delivered
[Round 11]
Issue: Thumbnail text illegible at mobile size across 3 formats
File: [thumbnails redacted]
Action: Escalated to client design team with specific recommendations
─────────────────────────────────────────────CORRECTIONS APPLIED─────────────────────────────────────────────
Total flags raised: 31
Total corrected: 28
Total escalated to client: 3─────────────────────────────────────────────Validated and approved for delivery.─────────────────────────────────────────────
Here is what to expect
Demonstration work
Lumaris produces demonstration videos for brands we want to work with.
The technical accuracy is the same standard as paid engagements. The
editorial discipline is the same. These brands did not commission this
work, we produced it independently.
Why this matters: a demonstration video produced under no commercial
pressure is the cleanest possible signal of technical capability.
There's no editorial compromise to a brief, no client-side feedback
loop, no scope constraint. What's shown is what we believe the work
should be.
Demonstration work
GitButler Demo
Demonstration work
XBOW Demo
Demonstration work
Kestra Demo
Demonstration work
Chromatic Demo
Demonstration work
ClickHouse Demo
Demonstration work
Solo.IO Demo
These are demonstrations. The work we produce when no client is in the room. To produce something like this
for your product specifically, the entry point is the Calibration.
The case study above could be yours, six months from now.
Antonio's 99% intro retention number didn't exist when we started
working with him. The 40% revision-time reduction Thu Vu measured didn't
exist either. Both numbers came from removing the translation layer
between editor and product.
The first conversation is a 15-minute fit call. We come prepared with
observations about your current content. You leave with a specific
recommendation on whether more video production is worth the investment
right now, or whether the timing is wrong.
If timing is right, the entry point is the Calibration. €2,500. Three
variants. Fully credited toward Month 1 if you continue.
