Ken Mwangi @ken_cipher

That's me kenmwangi.com

@bee_soze @Safaricom_Care Same here! @Safaricom_Care Why should I opt in Zidii MMF if i have an account with funds? mmeanza ukoraa

@ICTAuthorityKE 😂😂 be serious. It's free on YouTube buana

@GathogoBMwangi @NCBABankKenya This one has never failed me. As you have said transactions are quick!

@mureithi_me GitHub: github.com/kenmwangi kenmwangi.com

@tech_tafari @_celestino127 @mbiebuz @SafaricomPLC @paystack @Tunaresq We have used @paystack for seamless payments at @African_RE in the last 2+ years. First, Daraja documentation feels like Nairobi legacy drainage system, can't be pieced together. What about the 3 weeks manual KYC? Wacha ikae

We're launching Claude Community Ambassadors. Lead local meetups, bring builders together, and partner with our team. Open to any background, anywhere in the world. Apply: claude.com/community/amba…

@vilcomnetworks But when I call for you being offline 2 days is where you draw the line? Bure kabsa

You've been using Linux for years. But you're still doing things the hard way. Here are 7 commands that'll save you hours on terminal 1. Forgot to add sudo? - Type `sudo !!` - It repeats your last command with sudo. No retyping. 2. Just created a file? - Use `vim !$` to open it. - The !$ grabs the last thing you typed. 3. Can't remember that command? - Press Ctrl + R and start typing. - It searches your entire command history. 4. Made a typo in a long command? - Type `fc` - It opens your last command in an editor. Fix it and save. Done. 5. Jumping between folders? - Use pushd /some/path to save a location. - Use popd to go back. - No more typing long paths over and over. 6. Want to see your folder structure? - Type `tree -L 2` - Shows everything like an actual tree. Much cleaner than ls. 7. Need to go back to your last folder? - Just type cd - - Takes you right back. Simple. Bonus: Stop writing `cat file | grep something` - Just write `grep something file` - Does the same thing. Way cleaner. I've used Linux for years. These small commands save me time every single day. Bookmark this. Your future self will thank you.

you can get so much value out of a small channel

Since last 2 days I was exploring this GitHub repo. It contains Production-grade Go microservices repo worth studying Link: github.com/meysamhadeli/s… Here are some key learnings that I found informative to devs like me: - Vertical Slice Architecture - feature folders, not layers - CQRS + Go-MediatR - clean separation, pipeline behaviors - Event-driven with RabbitMQ - async communication - OpenTelemetry + Jaeger - distributed tracing - gRPC for inter-service calls - uber-go/fx for dependency injection - Full test coverage (unit/integration/e2e) It shows how to minimize coupling and maximize cohesion in real microservices.

Live Debugging Techniques for the Linux Kernel, Part 1 of 3 blogs.oracle.com/linux/live-ker… Live Debugging Techniques for the Linux Kernel, Part 2 of 3 blogs.oracle.com/linux/live-ker… Live Debugging Techniques for the Linux Kernel, Part 3 of 3 blogs.oracle.com/linux/live-ker…

kenmwangi.com

Ledger before UI update Idempotency everywhere Rate limit everything Tokenize sensitive data Message queues for money flows Version APIs strictly Feature flags for risky releases Canary deploy financial changes Rollbacks must be instant High chaos testing Double-entry ledger invariants (debits = credits, always) Reconciliation jobs daily (and on-demand) against processor/bank statements Immutable audit trail for every state change (who, what, when, why) Separate authorization vs capture vs settlement states (never “one status”) Never trust client inputs for money amounts, currency, or fees Validate currency + rounding rules explicitly (minor units, bankers rounding, etc.) Use strong id keys for external providers (dedupe webhooks + retries) Store raw webhook payloads + signatures for dispute/debugging Exactly-once is a myth, design for at-least-once with dedupe Outbox pattern for publishing financial events reliably Backpressure and circuit breakers around payment providers Strict timeouts + bounded retries (with jitter) for external calls Manual review lane for high-risk actions (limits, velocity, anomaly triggers) Principle of least privilege for IAM, DB, queues, and secrets Encrypt PII at rest + in transit, and rotate keys regularly Secrets never in env files in prod; use a secrets manager + rotation Data retention policies (PII deletion, log retention, legal holds) Separate prod vs non-prod credentials and accounts (no shared anything) Access logs for admin actions and privileged reads (PII access included) Auditability: every balance must be explainable from events + ledger entries Compliance-ready logging: structured, correlation IDs, no sensitive payloads Pen tests + threat modeling before major launches Regular security reviews + dependency scanning in CI Fraud controls: device fingerprinting, IP reputation, behavioral signals Limits everywhere: per user, per account, per instrument, per time window Disaster recovery drills (restore DB, replay events, reconcile balances) SLOs for critical flows (authorize/capture/withdrawal), alert on user pain “Break glass” procedures for incidents (with audited access) Independent auditor-friendly artifacts: policies, runbooks, diagrams, controls Periodic internal audits of controls + access + reconciliation outcomes

Vinyl Davyl 🪽 @Vinylchi

5 months ago

- Ledger before UI update - Idempotency everywhere - Rate limit everything - Tokenize sensitive data - Message queues for money flows - Version APIs strictly - Feature flags for risky releases - Canary deploy financial changes - Rollbacks must be instant - High chaos testing

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@LegacySiu Courtois Thibaut

Kenya’s Affordable Housing Program Stalls Amid Delays, Poor Quality, and Bureaucracy - The success of the affordable housing program serves as the ultimate test for the governm african-realestate.com/press/kenyas-a… via @African_RE

High Deposits Are Pushing Middle-Income Kenyans Towards Long-Term Renting - As the government continues to promote home ownership through initiatives such as the Affordable Housing Program%2 african-realestate.com/press/high-dep… via @African_RE

LSK Raise Alarm Over Growing Land Acquisition Disputes, Warns Investor Confidence Is At Risk - The Society says it may pursue legal action in upcoming disputed takeovers, and is african-realestate.com/press/lsk-rais… via @African_RE

@MusaliaMudavadi @WilliamsRuto @MamaRachelRuto How? Yakamoto Musalia. The shenanigans with this lot is diabolical

@husseinmoha @Harambee__Stars Call out the politicians for hoarding the tickets.