Tsotetsi

#SeniorSoftwareEngineer | #UCT | #ComputerScience | #InformationSystems | #DevOps | #CyberSecurity | #ML | #Python | #CurrentlyLearningGolang

[Tsotetsi @tsotetsi407]

@Malatjie_ Once u take it out. U need to use it, finish and klaar. Have some extra ammo in those six pockets or secondary 🔫.

[Tsotetsi @tsotetsi407]

@Sabrina87223622 1 dead already.
https://t.co/jbr18EhVJM

[Harry Chow @harrychow_]

I'm hiring a SWE intern for Pinetree Research, and the salary is $300K

Before you ask: 300K annualized. And no, we don't want your resume, coverletter, or grades

Here's how to apply:

1. Fork the Solari repo: https://t.co/TxbSy4v2XQ
2. Build a real use case with Solari (browsers, sandboxes, and/or desktops)
3. Publish it on a public Github account
4. Share it in a post on LinkedIn or X

Tag @harrychow_ and @getsolari

Use AI to build it. Seriously, we insist. We don’t care how you ship, we care that you can ship something great, and if you can ship if faster with AI, even better. (@im_roy_lee)

What happens next:

- We review every build that tags us
- If we like what you made, we schedule an interview
- If you're the right fit, we'll hire you on the spot

Know someone who can take on the challenge? Tag them below

For questions about Solari or the role, comment below or DM 🚀

May the best dev win

[Hieu 🚀 @hieuSSR]

I might have built the best Gmail alternative on @Cloudflare

Setup unlimited custom domain email here:
👉 https://t.co/WNeQigKRjQ

[Airlink @Fly_Airlink]

Planning. Precision. Performance. ✈️✈️

Spectacular scenes of Airlink’s double Embraer flyover at the DHL Stadium.

Airlink is Proud Official Sponsor of Rugby’s Greatest Rivalry, presented by Castle Double Malt 🏉

#Airlink #FlyAirlink #FlyTheLink #Skybucks #RugbysGreatestRivalry

[Peché Africa 🇿🇦 @pmcafrica]

Someone said those Cape Town Stadium flyover pilots were taxi drivers .. Blessed Sunday

[Tsotetsi @tsotetsi407]

Here are your followers and ur website visitors😅

[Massimo @Rainmaker1973]

Dead internet is no longer just a theory

[Tsotetsi @tsotetsi407]

@SEO30JJ Stuff like this happen quite alot moo Mzantsi. Someone needs to start tracking them or maybe I have to. What happened to fdc stories etc. But then after tracking, then what?😔

[Tsotetsi @tsotetsi407]

@swapnakpanda Frame 1, did they open a dam or what, like open everything. The sky doesn't look like the weather was nuts few hours ago for something like that to happen.

[Tsotetsi @tsotetsi407]

@Zaddyzaddy Is dig not allowed or it depends on the context. I was dealing with some cloudflare caching scenarios and noticed the model I was using did that command to do some verifications. Im the owner of the domain name. I'm yet to explore that command.

[Tsotetsi @tsotetsi407]

@GreySaurabh Second one. That bridge! There's something about it.🚀

[Tsotetsi @tsotetsi407]

@Manikipi @TheSituationZA "Capone", gangster shit?

[Tsotetsi @tsotetsi407]

@SumitM_X Depends on a company. Some companies will even wait for you to secure another job before leaving. They will even allow you to spend sometime during a week to navigate interview process without it being a big deal. Labour law's are very strict in certain countries.

[Puneet Patwari @system_monarch]

I learned basic system design.
↓
Drew a client, server, and database.
↓
"Looks scalable enough."
↓
Added 1 million users to the question.
↓
Server died.
↓
Added another server.
↓
"Wait, how does traffic know where to go?"
↓
Learned load balancers.
↓
Database became the bottleneck.
↓
Added read replicas.
↓
Writes were still slow.
↓
Learned indexing.
↓
Added a cache because everyone kept saying "use Redis."
↓
"Wait, what happens when the cache is stale?"
↓
Learned cache invalidation.
↓
One service started taking 8 seconds.
↓
Added a message queue.
↓
"Wait, what if the message gets processed twice?"
↓
Learned idempotency.
↓
Users started uploading huge files.
↓
Stopped storing them in the database.
↓
Learned object storage and CDNs.
↓
One region went down.
↓
Learned replication and failover.
↓
Realized every new box creates another problem.
↓
Finally understood system design.

Jokes aside.

Beginner system design feels overwhelming because people throw around terms like sharding, Kafka, Redis, CDNs, queues, replicas, and microservices.

You do not need to memorize all of them.

Start with one simple system:

Client → Server → Database

Then keep asking: "What breaks if traffic becomes 10x?"

[Tsotetsi @tsotetsi407]

@Atenov_D The probability of getting that OCI 12 GB ram tier is very low. They added a rate limit on that endpoint, so good luck with ur automated script. You also need to maintain certain amount of resource utilization otherwise it will be reclaimed.

[Bart Mol @Bart_Mol]

Me explaining AI to friends

[Tsotetsi @tsotetsi407]

@canandroid @IntCyberDigest Tuta looking good, first time hearing about them, but they are still in beta.

[SCR @SCR01111]

Codeforces Roadmap - 100 Problems to Go From Beginner → Strong Competitive Programmer 🚀

━━━━━━━━━━━━━━━━━━

1. IMPLEMENTATION

• 4A — Watermelon
• 71A — Way Too Long Words
• 231A — Team
• 282A — Bit++
• 158A — Next Round
• 112A — Petya and Strings
• 339A — Helpful Maths
• 263A — Beautiful Matrix
• 281A — Word Capitalization
• 734A — Anton and Danik

━━━━━━━━━━━━━━━━━━

2. MATH / NUMBER THEORY

• 1A — Theatre Square
• 50A — Domino piling
• 96A — Football
• 160A — Twins
• 230A — Dragons
• 474A — Keyboard
• 486A — Calculating Function
• 732A — Buy a Shovel
• 791A — Bear and Big Brother
• 996A — Hit the Lottery

━━━━━━━━━━━━━━━━━━

3. SORTING

• 339B — Xenia and Ringroad
• 450A — Jzzhu and Children
• 489B — BerSU Ball
• 580A — Kefa and First Steps
• 580B — Kefa and Company
• 977C — Less or Equal
• 1008A — Romaji
• 1154B — Make Them Odd
• 1367B — Even Array
• 160A — Twins

━━━━━━━━━━━━━━━━━━

4. TWO POINTERS / SLIDING WINDOW

• 279B — Books
• 701C — They Are Everywhere
• 1165B — Polycarp Training
• 1156C — Match Points
• 1244E — Minimizing Difference
• 1358B — Maria Breaks the Self-isolation
• 1538C — Challenging Cliffs
• 1691C — Sum of Substrings

━━━━━━━━━━━━━━━━━━

5. BINARY SEARCH

• 474B — Worms
• 706B — Interesting Drink
• 812C — Sagheer and Nubian Market
• 991B — Getting an A
• 1045G — AI Robots
• 1201C — Maximum Median
• 1370C — Number Game
• 1538E — Funny Substrings

━━━━━━━━━━━━━━━━━━

6. GREEDY

• 455A — Boredom
• 546B — Soldier and Badges
• 1256C — Platforms
• 1353C — K-th Not Divisible by n
• 1399C — Boats Competition
• 1470A — Strange Birthday Party
• 1607D — Blue-Red Permutation
• 1665B — Array Cloning Technique

━━━━━━━━━━━━━━━━━━

7. PREFIX SUM / DIFFERENCE

• 276C — Little Girl and Problem on Trees
• 433B — Kuriyama Mirai's Stones
• 474C — Captain Marmot
• 816B — Karen and Coffee
• 1006C — Three Parts of the Array
• 1114B — Yet Another Array Partition Task
• 1352F — Binary String To Subsequences

━━━━━━━━━━━━━━━━━━

8. STACK / QUEUE

• 5C — Longest Regular Bracket Sequence
• 91B — Queue
• 343B — Alternating Current
• 962D — Merge Equals
• 1099B — Squares and Segments
• 1272D — Remove One Element
• 1438B — Valerii Against Everyone

━━━━━━━━━━━━━━━━━━

9. GRAPHS

• 20C — Dijkstra?
• 34D — Road Map
• 277A — Learning Languages
• 510B — Fox And Two Dots
• 580D — Kefa and Dishes
• 601A — The Two Routes
• 1029C — Maximal Intersection
• 115A — Party
• 1242B — 0-1-Tree
• 1352E — Special Permutation

━━━━━━━━━━━━━━━━━━

10. TREES

• 115A — Party
• 274B — Zero Tree
• 1156D — 0-1-Tree
• 1283E — Modulo Equality
• 1325C — Ehab and Path-etic MEXs
• 1385F — Removing Leaves

━━━━━━━━━━━━━━━━━━

11. DYNAMIC PROGRAMMING

• 455A — Boredom
• 474D — Flowers
• 580D — Kefa and Dishes
• 711C — Coloring Trees
• 118D — Caesar's Legions
• 1195C — Basketball Exercise
• 1221C — Perfect Team
• 1353E — K-periodic Garland
• 1482C — Basic Diplomacy
• 1638C — Inversion Graph

━━━━━━━━━━━━━━━━━━

12. BIT MANIPULATION

• 579A — Raising Bacteria
• 276B — Little Girl and Game
• 467B — Fedor and New Game
• 550B — Preparing Olympiad
• 579B — Finding Team Member
• 1325B — CopyCopyCopyCopyCopy
• 1392B — Omkar and Infinity Clock

━━━━━━━━━━━━━━━━━━

13. STRINGS

• 43A — Football
• 58A — Chat Room
• 118A — String Task
• 1335B — Construct the String
• 1367C — Social Distance
• 1397B — Power Walking
• 1400C — Binary String To Subsequences
• 1537C — Challenging Cliffs

━━━━━━━━━━━━━━━━━━

14. ADVANCED / CONTEST THINKING

• 1352G — Special Permutation
• 1366C — Palindromic Paths
• 1372C — Omkar and Baseball
• 1380C — Create The Teams
• 1392C — Omkar and Waterslide
• 1428C — ABBB
• 1474B — Different Divisors
• 1490F — Equalize the Array
• 1520E — Arranging The Sheep
• 1530C — Pursuit
• 1552B — Running for Gold
• 1605C — Dominant Character
• 1611C — Polycarp Recovers the Permutation
• 1627C — Not Assigning

━━━━━━━━━━━━━━━━━━

HOW TO USE THIS

• Don't solve all 100 randomly.
• Start with Implementation + Math.
• Move to Sorting, Two Pointers and Binary Search.
• Then Graphs, Trees and DP.
• Try solving without editorials first.
• If stuck, understand the idea instead of copying the code.
• Re-solve problems you couldn't solve after 3–7 days.
• Start participating in Codeforces contests once you're comfortable.

LeetCode teaches interview patterns.

Codeforces teaches you how to think when the pattern isn't obvious.

If you're preparing for top product companies, doing both is a serious advantage.

Bookmark this before your next contest.

[Sam Hogan 🇺🇸 @samhogan]

fun little experiment @TheHarryET cooked up using this

we're giving away access to a 32xH200 cluster for the next 48 hours

go star this repo: https://t.co/rn8KJC5U5t

then run

ssh https://t.co/BBcDolH4Ia

only works if you've starred the repo, pretty cool

enjoy!

[Kimi.ai @Kimi_Moonshot]

Releasing the model weights and technical report of Kimi K3.

Kimi K3 is our most capable model: a 2.8T MoE model with native visual understanding and a 1M-token context window.

New model architecture: 2.5x the intelligence per unit of compute, not just more params.

Alongside Kimi K3, we're opening up more of the stack behind it — high-performance attention kernels, MoE communication library, and infrastructure for running agent environments at scale.

Model weights: https://t.co/7m7eEg6Y0B
Tech report: https://t.co/yeu6cjpMCT
Tech blog: https://t.co/YTfiMSNM1f