Articles on application architecture, privacy engineering, performance and product design.
100 articles
How the Flowo planner picks the day, hour and session length for a task, how it scores a slot, and the one decision it hands back when a deadline cannot be met.
Flowo's analytics is a closed catalogue of 68 typed events. This article shows what the properties hold, what context rides along and what CI checks.
A deletion request in Flowo runs as a server scrub and a local erasure that report separately. This article walks through the order, the key and the export.
BBMM Technologies sells TextPack as a one-time purchase and Flowo Pro as a subscription with a lifetime option. The reasoning, and how the app enforces it.
The schema.org types and properties BBMM Technologies emits as JSON-LD on bbmmtech.com, flowoapp.com and textpack.app, and the tests that check them.
The article format BBMM Technologies uses on bbmmtech.com: summary, key points and questions as typed fields, fixed heading levels, and noindex on thin pages.
The product rules behind Flowo reminders: what may trigger one, how the offsets and wording are set, what the app never sends, and how a refusal is handled.
What broke when Flowo went to seven languages and the tests that now catch it: plural categories, unit abbreviations, fallbacks and right-to-left drawing.
How Flowo applies data minimization field by field: what the backend stores per install, what each cloud request carries and what the app declines to read.
How BBMM Technologies handles secrets for Flowo: a gitignored dev file, build-time defines, a validator that fails a release, and a scan of every commit.
How Flowo splits AI work: a bundled multilingual embedder ranks tasks and notes on the phone, and a cloud model receives only the text a request needs.
How Flowo's planner handles time: an injected clock, calendar days built by constructor, day counts at UTC midnight, and tests in named zones on DST nights.
Flowo keeps a person's plan only on their phone. The engineering that requires: a startup order, a file lease, hand-built commits and one data inventory.
How BBMM Technologies turns a web performance budget into failing builds: a byte limit on hero media, an inlined stylesheet, and scripts that load on demand.
Design decisions in Flowo that remove steps before work begins: capture with no required fields, a breakdown shown as a draft, and a leaf-only start rule.
Why bbmmtech.com, flowoapp.com and textpack.app ship as static files, how each site is built, and what static export removes from a Next.js or Vite project.
How Flowo schedules iOS local notifications: one-shot triggers at absolute instants, a budget under the pending limit, stable ids and a path that never prompts.
How Flowo versions on-device data: stamps on small state documents, a checksummed snapshot before a large migration, and rules for what may be discarded.
Why moving between apps and tasks carries a hidden cognitive cost, and how software can reduce the friction of switching for the people who use it.
Why trust follows from engineering choices: how secure architecture, transparent behavior and good defaults earn it.
The questions BBMM Technologies asks before building anything, turning feature decisions into a deliberate test of purpose, cost and fit.
What it takes to build software that remains maintainable for ten years, where most cost lives after launch and clarity beats cleverness.
The registry facts, legal pages, security.txt, response headers, consent rules and written limits BBMM Technologies publishes on its sites, and the reasons.
How a macOS utility turns plain text into well-formed PDF, covering text layout, pagination, and the rendering pipeline behind print-quality output.
How App Sandbox, Hardened Runtime, notarization, Gatekeeper and TCC fit together, and the decisions they force on a local document tool like TextPack.
Content is now read by people and by language models. The same qualities that serve readers, clarity and structure, also serve machine understanding.
How search should behave in a small app, where scope is narrow and the right design tolerates imperfect input and fits the data.
Automated checks catch only part of accessibility. A workflow that combines tooling, keyboard and screen-reader testing, and real users catches the rest.
How the small words in an interface shape understanding, and how to write microcopy that guides the user clearly at the moment they need it.
How to learn enough from crashes to fix them while collecting no more user data than necessary, keeping diagnostics and privacy compatible.
Releasing too often wears a team down, and releasing too rarely lets risk pile up. A steady, predictable cadence keeps quality high at a pace people can sustain.
When an AI assistant answers from your content, it extracts a passage. How to write so the passage it lifts is accurate, complete, and attributed to you.
How to organize settings so common options are easy to find and advanced ones stay available, using progressive disclosure to manage complexity.
People are interrupted mid-task constantly. Preserving state, marking where they left off, and restoring context turn a jarring return into a smooth resumption.
How BBMM Technologies keeps product development disciplined: limited work in progress, written decisions and a finished standard for every change.
How rendering choices affect battery life on Apple platforms, and the patterns that keep an interface smooth without draining the device.
Interfaces that present everything at once invite divided attention. Designing for single-tasking means showing one thing to do and protecting it from the rest.
How the Flowo backend limits AI requests without user accounts: attested devices, per-device rate limits, atomic daily quotas and gates that fail open.
How BBMM Technologies gates analytics in Flowo: no SDK at cold start, a versioned consent ledger, an event allowlist and a web banner that expires.
The decision about a feature continues after it ships. How to assess, after release, whether a feature earned its keep or should be removed.
Powerful tools overwhelm if they reveal everything at once. Progressive onboarding teaches capability in layers, as the user is ready for each one.
How customers judge whether software pricing is fair, and why honest, legible pricing builds more durable trust than psychological tactics.
Choosing well-understood, proven tools over novel ones is an underrated engineering strategy. Why boring technology often delivers more than exciting alternatives.
Why most documentation goes unread, and how to write docs that answer real questions, stay current, and respect the reader’s time.
Most changelogs are ignored because they list commits. How to write one that tells users what changed for them and why.
How caching makes applications feel fast, the strategies for keeping cached data fresh, and why invalidation is the hard part.
You can understand how a product is used without surveilling users. Consent, minimal data, and direct channels build a feedback loop people trust.
Flowo keeps plans on one device, with no account and no sync between devices. We explain what leaves the phone and what sync would need first.
Most people never change a default, so defaults are decisions made on their behalf. Setting them in the user’s interest is a core ethical responsibility.
How to use motion to clarify, so animation guides attention and explains change.
Readability depends on more than reading level, and information scent decides whether people follow a path. How to assess both so content keeps readers moving.
Interfaces compete for attention but rarely support memory. Recognition over recall, durable cues and working-memory limits make a tool easier to return to.
How to design software for a range of neurodivergent needs, from autism to dyslexia, by offering flexibility rather than one fixed experience.
Internal links tell search engines and readers how a site’s ideas connect. A deliberate structure builds topical authority and helps every page be found.
How to choose among Core Data, SQLite, and flat files for an app’s local storage, based on the shape of the data and the queries you need.
How bbmmtech.com feeds its pages, structured data and llms files from one set of content modules, and the build checks that stop the copies drifting apart.
How the choice of file format determines whether a user’s data survives the software, and why portability is an act of respect.
How Flowo turns schedule changes into reminders: one permission request, three categories, a coalescing event bus, a ledger and a daily background repair.
How Flowo handles cognitive accessibility: one decision per screen, copy checked by tests, a fixed tab model, a design governance test and seven locales.
Launch time is the first impression. How to find what work blocks the first frame and defer or remove it so an app feels instant from the tap.
Checkout is where doubt is most expensive. Clarity about price, security cues that are real, and recoverable errors decide whether people complete a purchase.
The robots.txt groups, llms.txt and llms-full.txt files, FAQ markup and self-contained answers BBMM Technologies publishes on bbmmtech.com and flowoapp.com.
JavaScript is the most expensive resource a page ships. Code splitting, tree shaking, and dependency discipline keep bundles small and pages responsive.
Why adding features steadily makes a product worse, and how scope discipline keeps software focused and maintainable.
How Flowo changes its on-device Hive schema without losing data, using stub adapters for retired types and a backup before every destructive rewrite.
How to build a design system that stays useful for years by keeping it minimal, grounding it in tokens and extending it only as real needs appear.
Everything must work from the keyboard. Visible focus, logical order, and disciplined focus management for menus and dialogs make an interface operable by all.
Why how fast software feels matters as much as how fast it is, and how to design for perceived performance alongside raw numbers.
How to build a typographic system for software using a modular scale, sensible line length and spacing, and a small set of consistent roles.
Dark mode needs more than an inverted light theme. Semantic color tokens and a few principles let one system serve both modes without maintaining two designs.
Shortcuts only help if people remember them. Consistency, mnemonic mappings, and discoverability turn shortcuts from a hidden feature into a learned habit.
A small app needs enough logging to answer what happened, without drowning in noise or capturing personal data.
How BBMM Technologies applies WCAG in the Flowo app and on three websites: text scaling to 200%, reduced motion, focus styles, semantics and the open gaps.
How interface density affects cognitive load, and how to decide how much to show on screen based on the kind of mental effort a task demands.
How Flowo turns a short description of the week into a validated draft, a scheduled plan and one task of the person's own before the first screen opens.
A practical threat modeling method that a small team can run in an afternoon to find and rank security risks before they ship.
Export is a promise that users own their data. The format decides whether that promise is real. What makes an export complete, open, and actually usable.
How to keep SwiftUI state predictable as an app grows, with guidance on ownership, sources of truth, and the most common mistakes.
Images dominate page weight. How to serve the right format and size, defer offscreen images, and reserve space so layout stays stable as they load.
Why empty and error states deserve as much care as the happy path, and how to turn these moments into guidance instead of dead ends.
How to keep a native macOS app fast by protecting the main thread, measuring with the right tools, and working to explicit performance budgets.
A component library succeeds when it reduces the decisions developers make. Composition, tokens, and clear ownership keep it usable as it grows.
How to design software that rewards keyboard fluency with shortcuts, command interfaces, and full navigability, without abandoning newcomers.
Flowo shows a habit streak. This is how the count is computed, what is treated as a miss, and what the planner does after a session is skipped or missed.
How to build a light-mode color system that stays legible and calm, using a small palette, deliberate contrast, and color that carries meaning.
How the Flowo app separates a first run from a returning session: one stored flag, one landing parameter, and hint state that real actions retire.
Real connectivity is intermittent. How to build apps that stay usable on slow links and degrade gracefully when the network disappears entirely.
How iOS governs background work to protect battery life, and how to schedule deferred tasks that the system will actually run.
How to use haptic feedback sparingly and meaningfully, so that touch confirms and guides without adding to the noise of an interface.
Reliable undo lets people act without fear. How to design forgiveness through reversible actions, clear scope, and recovery rather than confirmation dialogs.
An error message is a moment of friction that can either rescue or abandon the user. What separates a message that helps from one that blames or confuses.
How Swift’s ownership and reference-counting model prevents whole classes of memory bugs, and the patterns that keep retain cycles and leaks away.
Forms are where many users succeed or give up. Labels, error handling, focus order, and clear instructions decide whether a form is usable by everyone.
A step-by-step account of what Flowo's onboarding asks of a new person, what is optional, and which tours, prompts and hints we removed or deferred.
Flowo's settings screen has no search field. This is how we group nine rows into three sections across seven languages, and what would make us add search.
Every notification has a price. It interrupts working memory, and users who pay that price too often disable the channel entirely.
Reach, thumb zones, and the realities of holding a large phone in one hand, and how to place primary actions where they can actually be reached.
The color tokens behind Flowo: four brand anchors, light and dark surface values, contrast ratios computed with the WCAG formula, and paired status colors.
A practical account of structured concurrency, actors, and data isolation in Swift, with the trade-offs and failure modes that show up in real apps.
How the Flowo focus screen picks the current task from the schedule, what it keeps off the screen, how the timer keeps running and what a session saves.