DHDTech.io

BACKGROUND

Please describe your company and position.

I'm a manager at Brazil Flying Labs

Describe what your company does in a single sentence.

World wide non-profit organisation that uses drones, AI, and geospatial data to drive social and environmental impact. They offer training and education programmes — including STEM courses for youth and vulnerable communities — promote responsible drone use across sectors like environmental conservation, and collaborate with regulators to help shape evidence-based public policy around emerging technologies. They're part of the global Flying Labs network.

OPPORTUNITY / CHALLENGE

What specific goals or objectives did you hire DHDTech.oi to accomplish?

• Desktop (MAC, Linux and Windows) to track wildifre incidents by using image processing and AI.
• Web App to track wildfire incidents by using image processing and AI.
• Mobile App to track wildfire incidents by using image processing and AI.

SOLUTION

How did you find DHDTech.oi?

Referral

Why did you select DHDTech.oi over others?

• Pricing fit our budget
• Great culture fit
• Good value for cost
• Company values aligned

How many teammates from DHDTech.oi were assigned to this project?

2-5 Employees

Describe the scope of work in detail. Please include a summary of key deliverables.

DHDTech.io designed and delivered a full end-to-end wildfire damage assessment platform for Brazil Flying Labs, spanning a web application, a cross-platform desktop application, and an iOS/Android mobile app — all sharing the same backend and authentication layer.

Web Platform (wildfire-assessment)

The core product is a React single-page application backed by a Django REST Framework API. The platform enables field teams and researchers to manage geographic areas of interest, trigger AI-powered burn severity assessments using Sentinel-2 satellite imagery processed through Google Earth Engine, and review scientific deliverables including dNBR, RBR, dNDVI, and RGB composites. Analysis results are displayed in an interactive dashboard with draggable, configurable widgets — including a live fire map, severity trend charts, recent analyses, and statistical summary cards.

The backend runs Celery workers for asynchronous satellite data processing and report generation, with Redis as the task broker and cache. AI analysis reports and follow-up Q&A are powered by Google Gemini (primary) and OpenAI GPT-4o (fallback). The API is documented via OpenAPI/Swagger and secured with Auth0 JWT authentication. A multi-language interface (English, French, Portuguese) was implemented using a custom translation context.

Infrastructure is fully managed with Terraform on AWS: ECS Fargate for containers, Aurora PostgreSQL with PostGIS for geospatial data, S3 and CloudFront for static asset delivery, ALB for load balancing, ECR for container images, and Secrets Manager for credentials. CI/CD runs entirely through GitHub Actions, automating API deployment to ECS, UI deployment to S3/CloudFront, and Terraform plan/apply across environments.

Desktop Application (wildfire-assessment-electron)

DHDTech.io migrated the web application to a full Electron desktop app, distributed for macOS (Intel and Apple Silicon), Windows (x64 and ARM), and Linux (AppImage and .deb). Auth0 authentication was adapted to a custom deep-link protocol (wildfire://) to handle OAuth callbacks securely in a desktop context. Tokens are persisted using encrypted local storage via electron-store. An auto-update system was implemented using electron-updater, pulling new releases directly from GitHub Releases — meaning users receive silent background updates without any manual download. The build and release pipeline is fully automated through GitHub Actions, including macOS notarization for Gatekeeper compliance.

Mobile Application (wildfire-assessment-app)

A React Native mobile app was built with Expo targeting both iOS and Android. The app shares the same feature set as the web platform: authentication via Auth0, area management, analysis tracking, AI chat, dashboard, notifications, and user profile. Push notifications were integrated via Expo Push Service. The app architecture follows file-based routing with Expo Router and uses a tab-based navigation structure.

Observability — Grafana Cloud and PostHog

All three applications — web, desktop, and mobile — were instrumented by DHDTech.io with a unified observability stack built entirely on free-tier services.

For infrastructure and backend monitoring, Grafana Alloy was deployed as a sidecar OpenTelemetry collector. Alloy receives traces, metrics, and logs from the Django API, Celery workers, and Redis over OTLP (gRPC and HTTP), and ships everything to Grafana Cloud via authenticated OTLP export. The Django backend is auto-instrumented using the full OpenTelemetry Python SDK, covering HTTP requests, database queries, Celery tasks, Redis calls, and outbound HTTP. Redis metrics are scraped via a built-in Prometheus exporter in Alloy and forwarded into the same pipeline.

Five Grafana dashboards were provisioned and version-controlled as JSON via Terraform: ECS container metrics, RDS Aurora performance, Django API request metrics, Redis health, and frontend RUM. Alert rules were defined in code and cover: Aurora ACU and CPU utilisation above 95%, ECS CPU and memory above 80%, backend error log spikes, API 5xx response rate above threshold, JavaScript exceptions from the web UI, JavaScript exceptions from the mobile app, Redis going unreachable, Redis memory above 85%, key evictions, low cache hit rate below 80%, and blocked client accumulation. Alerts are routed to two contact points — error alerts (no resolve notification) and resource alerts (with resolve notification) — and delivered by email to the engineering team.

For frontend observability, Grafana Faro (@grafana/faro-web-sdk) was integrated across the web app, desktop app, and mobile app. Faro captures JavaScript exceptions, console errors, distributed traces, and real-user session data, all forwarded to Grafana Cloud Loki for log querying and alerting. Each application registers under a distinct app_name(wildfire-ui, wildfire-mobile, wildfire-assessment-electron) allowing per-surface error filtering in Grafana Explore.

PostHog was integrated for product analytics across all surfaces. It is initialised with opt_out_capturing_by_default: true — capturing is only activated after the user explicitly accepts the cookie consent banner. Page views are captured manually on every navigation event (including browser back/forward) to ensure accuracy. Autocapture is enabled for click and interaction events. The Electron build tags all PostHog events with a platform: electron property to distinguish desktop sessions from web sessions.

Both Grafana Faro and PostHog are gated by the same cookie consent hook — accepting cookies activates both services simultaneously, and rejecting or resetting consent pauses Faro and opts PostHog out in real time, with no page reload required.

Key Deliverables

• Production-deployed web application on AWS (ECS + Aurora + CloudFront)
• Electron desktop app with installers for macOS, Windows, and Linux with auto-update
• React Native mobile app for iOS and Android with push notifications
• Terraform-managed infrastructure including all Grafana dashboards and alert rules GitHub Actions CI/CD pipelines for all three applications
• Full OpenTelemetry instrumentation on Django, Celery, and Redis
• Grafana Faro RUM integration on web, desktop, and mobile
• PostHog analytics with GDPR-compliant cookie consent gating across all surfaces
• Auth0 authentication shared across all three applications with appropriate flow per platform

RESULTS & FEEDBACK

What were the measurable outcomes from the project that demonstrate progress or success?

DHDTech.io delivered a platform that went from zero to fully operational across three distinct surfaces — web, desktop, and mobile — within a single project engagement.

Three production-ready applications shipped. The web platform, Electron desktop app, and React Native mobile app were all taken to production, each with their own CI/CD pipeline, authentication flow, and distribution mechanism. The desktop app produces signed and notarized installers for six platform targets: macOS Intel, macOS Apple Silicon, Windows x64, Windows ARM, Linux AppImage, and Linux .deb — all built and published automatically on every tagged release.

Zero-touch deployment pipeline. Every code push triggers automated testing, building, and deployment through GitHub Actions. Infrastructure changes — including Grafana dashboards and alert rules — are applied via Terraform, meaning the entire system state is reproducible and version-controlled. No manual deployment steps are required for any of the three applications.

Full observability from day one. Before the first user session, the platform had five live Grafana dashboards covering ECS, RDS Aurora, Django API, Redis, and frontend RUM. Seventeen alert rules were active across backend errors, API 5xx rates, JavaScript exceptions, and infrastructure resource thresholds — all routing to the engineering team automatically with no manual monitoring required.

End-to-end traceability across the stack. A single user request can be traced from the browser or mobile app through the Django API, into Celery task execution, down to database queries and Redis operations — all visible in Grafana Cloud using distributed tracing via OpenTelemetry.

GDPR-compliant analytics across all platforms. PostHog and Grafana Faro are both live and consent-gated, meaning product usage data is being collected in a legally compliant way from web, desktop, and mobile users simultaneously — giving Brazil Flying Labs visibility into how the platform is actually being used in the field.

AI-powered analysis operational. The satellite imagery pipeline — from area selection through Google Earth Engine processing to AI-generated burn severity reports — is fully automated end-to-end, with both Google Gemini and OpenAI as live fallback providers, ensuring continuity of the core scientific workflow regardless of third-party availability.

Describe their project management. Did they deliver items on time? How did they respond to your needs?

DHDTech.io was organised and reliable throughout the engagement. All deliverables were completed on time with no missed deadlines. The team was consistently available for meetings to discuss requirements, review progress, and accommodate changes as the project evolved. Communication was clear and responsive — questions and adjustment requests were addressed promptly without disrupting the overall timeline. It was a smooth collaboration from start to finish.

What was your primary form of communication with DHDTech.oi?

• Virtual Meeting
• Email or Messaging App

What did you find most impressive or unique about this company?

What stood out most was the breadth of ownership DHDTech.io brought to the project. Rather than delivering just the code, they handled everything end-to-end — cloud infrastructure, CI/CD pipelines, observability, authentication, AI integrations, and three separate application surfaces — all as a single cohesive delivery. Nothing was left for us to figure out after handoff.
The observability setup was particularly impressive. Having five live dashboards, seventeen alert rules, and full distributed tracing active from day one — entirely on free-tier tooling — is not something we expected. It showed a level of engineering maturity that went well beyond what was strictly required.

Are there any areas for improvement or something DHDTech.oi could have done differently?

No.

BACKGROUND

Introduce your business and what you do there.

I’m the owner of Espaço Sol, a holistic wellness studio in Guará I, Brasília-DF. We offer yoga classes, Reiki sessions, holistic therapies, and Reiki certification courses for integrated body, mind, and energy care.

OPPORTUNITY / CHALLENGE

What challenge were you trying to address with DHDTech.io?

I hired DHDTech.io to build Espaço Sol’s first professional website. Our goals were to establish a credible online presence after 25+ years operating mainly through word of mouth, get found on Google by people searching for yoga and holistic therapies in Guará I and Brasília-DF, clearly present our different services to newcomers, and funnel interested visitors straight into WhatsApp, where most of my students prefer to reach me. I also wanted a foundation I could grow over time with blog posts, testimonials, and new services.

SOLUTION

What was the scope of their involvement?

DHDTech.io handled the full scope of designing, building, launching, and hosting Espaço Sol’s website from scratch. Main deliverables included a mobile-first responsive site, dedicated pages for each service line, institutional pages, direct WhatsApp integration on every call-to-action, local SEO setup for Guará I and Brasília-DF, a blog structure, and professional branding aligned with the studio’s identity. DHDTech.io also hosts the site and provides ongoing support for content updates.

What is the team composition?

We worked with 2–5 teammates from DHDTech.io.

How did you come to work with DHDTech.io?

We found them through a referral. We chose them over other options because they had high ratings, were close to my geographic location, had pricing that fit our budget, had a great culture fit, and were referred to me.

How much have you invested with them?

We spent around $3,000.

What is the status of this engagement?

We worked with them from January-March 2026.

RESULTS & FEEDBACK

What evidence can you share that demonstrates the impact of the engagement?

We’ve seen strong Google visibility in our region — the site now ranks on the first page for key local searches like “yoga Guará”, “Reiki Brasília”, and related terms, which is exactly the audience I wanted to reach. We’ve also seen a noticeable increase in new student inquiries via WhatsApp, with many people explicitly mentioning they found us through Google — something that rarely happened before the site launched. Moreover, we’ve seen excellent site performance scores, with fast loading times on both mobile and desktop, which directly supports the SEO ranking and user experience. We’ve also seen higher conversion from visitor to conversation, thanks to the WhatsApp integration on every call-to-action — visitors reach me in one tap instead of filling out forms. Additionally, we’ve seen a consistent and professional brand presence that finally matches the 26+ years of experience behind the studio, giving new students confidence before they even step through the door. We’ve also seen zero downtime since launch, with reliable hosting and quick turnaround on any content updates I request. More than the numbers, the project has given Espaço Sol a solid digital foundation we can continue to grow on. Our legacy website had gone months without bringing in a single new client — it simply wasn’t working as a discovery channel. Since the launch of the new site built by DHDTech.io, we’ve been consistently receiving new client inquiries on a daily basis, most of them coming through WhatsApp after finding us on Google. For a studio that relied almost entirely on word of mouth for 25+ years, that’s a meaningful, visible shift in how new students are reaching us. Moreover, because the new site clearly explains each of our practices, the people who reach out are arriving already informed about what we offer. They know the difference between a Hatha Yoga class and Yogaterapia Hormonal, or between a Reiki session and an EMF Balancing treatment, before they even send the first WhatsApp message. That means conversations are shorter, expectations are aligned, and our conversion rate from inquiry to booked client is noticeably higher than it used to be.

How did DHDTech.io perform from a project management standpoint?

Project management was smooth and professional. DHDTech.io delivered on time, kept me informed at every stage, and responded quickly whenever I had questions or requested adjustments. We communicated via email and messaging apps.

What did you find most impressive about them?

What impressed me most was how Diogo (CEO) combined technical excellence with genuine sensitivity to our work. He took the time to truly understand the soul of Espaço Sol and translated it into a site that feels as welcoming as the studio itself — a rare balance of craftsmanship and care.

Are there any areas they could improve?

Honestly, no. The entire process was smooth from start to finish, and the final result exceeded my expectations. I wouldn’t change a thing.

BACKGROUND

Introduce your business and what you do there.

I’m the owner of a beauty company. I’m a massage therapist working with Renata França’s method.

OPPORTUNITY / CHALLENGE

What challenge were you trying to address with DHDTech.io?

I hired DHDTech.io to build a professional website for my massage therapy practice in Brasília, specializing in the Renata França method. My main goals were to establish a strong online presence, showcase my certifications and services (lymphatic drainage, Miracle Touch, Miracle Face, and body sculpting massage), display real client reviews and results, and make it easy for potential clients to book appointments through WhatsApp. I also wanted the site to rank well on Google for local searches in the Brasília/Vicente Pires area.

SOLUTION

What was the scope of their involvement?

DHDTech.io built my entire website from scratch — a modern, responsive site for my massage therapy practice. The main deliverables included a fully custom-designed website with my brand identity (colors, fonts, logo, and favicon), individual service pages for each of my four Renata França method techniques, a results and video gallery showcasing real client transformations, integration of 16 real Google reviews, a blog section with wellness content, location pages targeting different neighborhoods in Brasília for local SEO, Google Analytics tracking, SEO optimization with structured data and sitemap, WhatsApp integration for easy appointment booking, and social sharing meta tags. They also handled all the image and video assets, making sure the site felt premium and aligned with the luxury wellness experience I offer.

What is the team composition?

We worked with 2–5 teammates from DHDTech.io.

How did you come to work with DHDTech.io?

They were referred to me. I chose them because they had high ratings, their pricing fit our budget, and they were a great culture fit.

How much have you invested with them?

We spent less than $10,000.

What is the status of this engagement?

We worked together from January to March 2026.

RESULTS & FEEDBACK

What evidence can you share that demonstrates the impact of the engagement?

Since the site launched, I’ve seen a noticeable increase in client inquiries through WhatsApp directly from the website. The site loads fast and looks great on mobile, which is where most of my clients find me. My Google presence improved significantly — I now have dedicated pages ranking for searches like “lymphatic drainage in Brasília” and “Renata França method in Vicente Pires.” The 16 real Google reviews displayed on the site help build immediate trust with new visitors. The video gallery and real client photos have also made a difference — potential clients can see actual results before booking, which has improved my conversion rate. Overall, the website gave my practice a level of credibility and professionalism that I didn’t have before with just social media alone.

How did DHDTech.io perform from a project management standpoint?

DHDTech.io’s project management was excellent. They were very organized and delivered the entire website quickly — much faster than I expected for the amount of work involved. Communication via emails and messages was smooth throughout the process. They handled everything iteratively, checking in with me on design choices, brand alignment, and content before moving forward. When I requested changes — like swapping photos, adding new videos, or adjusting content — they were responsive and made updates promptly. There were no missed deadlines or surprises. They delivered a complete, polished website that was ready to go live without any major revisions needed. I felt like they genuinely cared about getting the details right, not just shipping something generic.

What did you find most impressive about them?

What impressed me the most was the combination of speed and quality, which is, honestly, rare. DHDTech.io delivered a fully polished, professional website in a remarkably short timeframe without cutting corners. The design quality is something I’d expect from a weeks-long project, yet they turned it around much faster. Every detail was intentional — from the color palette matching my brand identity to the typography, the smooth animations, the mobile experience, and the SEO structure behind the scenes. It never felt rushed despite the fast delivery. Most agencies I’ve seen either deliver fast with mediocre quality or deliver quality but take forever. DHDTech.io managed to do both at a high level, and that’s what truly sets them apart.

Are there any areas they could improve?

No, there’s nothing they could have done better.