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Alex Georgiev

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Location Sofia Joined Joined on  Personal website https://alexgeorgiev.net github website twitter website
Hacktoberfest 2026 Challenge Completion
Node
4 Week Community Wellness Streak
Hacktoberfest 2026 Challenge: Best Use of DigitalOcean
2 Week Community Wellness Streak
1 Week Community Wellness Streak
Six Year Club
Five Year Club
Four Year Club
Writing Debut
Three Year Club
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Docker Engine 29.9.1 fixes a docker save bug that left deleted layers on disk
alexgeorgiev17 profile

Docker Engine 29.9.1 fixes a docker save bug that left deleted layers on disk

#docker #devops #containers #performance
8
Comments
7 min read

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Redis 8.4's digest-based SET option cuts a 1MB compare-and-set from 4.3ms to 1.6ms
alexgeorgiev17 profile

Redis 8.4's digest-based SET option cuts a 1MB compare-and-set from 4.3ms to 1.6ms

#redis #database #performance #devops
8
Comments
7 min read
SQLite 3.54's diskused command needs a build flag sqlite3_analyzer never required
alexgeorgiev17 profile

SQLite 3.54's diskused command needs a build flag sqlite3_analyzer never required

#sqlite #database #performance #devops
12
Comments
6 min read
Docker Compose 5.6's jobs type only starts through docker compose run
alexgeorgiev17 profile

Docker Compose 5.6's jobs type only starts through docker compose run

#docker #devops #containers #performance
16
Comments 2
6 min read
PostgreSQL 19 beta's parallel autovacuum launches workers but leaves vacuum time unchanged
alexgeorgiev17 profile

PostgreSQL 19 beta's parallel autovacuum launches workers but leaves vacuum time unchanged

#postgres #database #performance #devops
18
Comments 2
7 min read
RevCheck, compare the cars you want before you buy your next daily driver

Hacktoberfest Open-Source AI Challenge Week 2: Side Hustle Submission 💸
alexgeorgiev17 profile

RevCheck, compare the cars you want before you buy your next daily driver

#devchallenge #hf26challenge #ai #opensource
15
Comments
8 min read
DuckDB 2.0 alpha's triggers cost three times more per row than per statement
alexgeorgiev17 profile

DuckDB 2.0 alpha's triggers cost three times more per row than per statement

#database #performance #devops #programming
8
Comments 2
7 min read
PostgreSQL 19's REPACK CONCURRENTLY swaps a five-second table lock for one under a second
alexgeorgiev17 profile

PostgreSQL 19's REPACK CONCURRENTLY swaps a five-second table lock for one under a second

#postgres #database #performance #devops
9
Comments
6 min read
Deno's audit --fix flag found 13 vulnerabilities and fixed none of them
alexgeorgiev17 profile

Deno's audit --fix flag found 13 vulnerabilities and fixed none of them

#deno #javascript #security #devops
11
Comments 1
7 min read
Traefik 3.7's service middlewares target one branch of a weighted service
alexgeorgiev17 profile

Traefik 3.7's service middlewares target one branch of a weighted service

#traefik #docker #devops #networking
14
Comments
7 min read
MongoDB 8.3's arrayIndexAs cuts a map-with-index workaround's overhead by up to 31%
alexgeorgiev17 profile

MongoDB 8.3's arrayIndexAs cuts a map-with-index workaround's overhead by up to 31%

#mongodb #database #performance #devops
14
Comments 2
6 min read
RevSofia, a Car Meetup app that people will love to use

Hacktoberfest Open-Source AI Challenge Week 1: Touch Grass Submission 🌿
alexgeorgiev17 profile

RevSofia, a Car Meetup app that people will love to use

#devchallenge #hf26challenge #ai #opensource
24
Comments 5
7 min read
Node.js 26's default Temporal API fixes a one-hour DST drift that Date still has

Benchmarking reveals a 19x performance cost
alexgeorgiev17 profile

Node.js 26's default Temporal API fixes a one-hour DST drift that Date still has

#node #javascript #performance #webdev
14
Comments 18
7 min read
Django 6.1's PBKDF2 default change rewrites existing password hashes on next login

Exposes a bug that downgrades hardened hashes
alexgeorgiev17 profile

Django 6.1's PBKDF2 default change rewrites existing password hashes on next login

#django #python #security #performance
19
Comments 5
7 min read
ParadeDB's pg_search 0.26 cuts a ten-term BM25 search from 129ms to 29ms

Comes with a 5x slowdown on single-term queries
alexgeorgiev17 profile

ParadeDB's pg_search 0.26 cuts a ten-term BM25 search from 129ms to 29ms

#postgres #database #performance #devops
11
Comments 5
8 min read
Valkey 9.2's INCREX command removes the crash window between INCR and EXPIRE
alexgeorgiev17 profile

Valkey 9.2's INCREX command removes the crash window between INCR and EXPIRE

#valkey #database #performance #devops
10
Comments 1
8 min read
Bun 1.4's bun test --parallel cuts a 4-second suite to about 1 second

Real-world limits and worker scaling behavior
alexgeorgiev17 profile

Bun 1.4's bun test --parallel cuts a 4-second suite to about 1 second

#javascript #testing #performance #webdev
16
Comments 10
7 min read
nginx 1.29.6 moves cookie-based session affinity out of nginx Plus
alexgeorgiev17 profile

nginx 1.29.6 moves cookie-based session affinity out of nginx Plus

#nginx #devops #networking #performance
12
Comments 4
7 min read
Valkey 9.2's forkless BGSAVE cuts my memory spike from 350MB to 10MB
alexgeorgiev17 profile

Valkey 9.2's forkless BGSAVE cuts my memory spike from 350MB to 10MB

#valkey #database #performance #devops
13
Comments 4
7 min read
Docker Engine 29.7's overlay networking breaks every Swarm task without IPv6
alexgeorgiev17 profile

Docker Engine 29.7's overlay networking breaks every Swarm task without IPv6

#docker #devops #containers #networking
21
Comments 5
8 min read
The BMW manual was off-limits, so I built my friend something better

Hacktoberfest Weekend Challenge: Build for a Friend Submission 🤝
alexgeorgiev17 profile

The BMW manual was off-limits, so I built my friend something better

#devchallenge #weekendchallenge #hf26challenge #ai
45
Comments 12
10 min read
Git 2.56's fetch.followRemoteHEAD setting fixes stale origin/HEAD for every remote
alexgeorgiev17 profile

Git 2.56's fetch.followRemoteHEAD setting fixes stale origin/HEAD for every remote

#git #devops #programming #opensource
8
Comments
7 min read
SQLite 3.53's SET NOT NULL replaces a full table rebuild with six writes
alexgeorgiev17 profile

SQLite 3.53's SET NOT NULL replaces a full table rebuild with six writes

#sqlite #database #performance #devops
17
Comments
7 min read
MongoDB Community Edition's new search index stayed pending above 89% disk use
alexgeorgiev17 profile

MongoDB Community Edition's new search index stayed pending above 89% disk use

#mongodb #database #docker #performance
18
Comments 3
7 min read
Docker Compose's daily pull policy cuts registry checks by 80% during up
alexgeorgiev17 profile

Docker Compose's daily pull policy cuts registry checks by 80% during up

#docker #devops #containers #performance
9
Comments 7
7 min read
PostgreSQL 19's WAIT FOR LSN command replaces the read-your-writes polling loop
alexgeorgiev17 profile

PostgreSQL 19's WAIT FOR LSN command replaces the read-your-writes polling loop

#postgres #database #devops #performance
15
Comments 2
8 min read
containerd 2.2's mount manager panics on a one-mount mkfs chain

Manual loopback setup beats the API's speed
alexgeorgiev17 profile

containerd 2.2's mount manager panics on a one-mount mkfs chain

#containerd #docker #devops #go
6
Comments 12
8 min read
systemd's mstack tool mounts a single-layer directory writable by default
alexgeorgiev17 profile

systemd's mstack tool mounts a single-layer directory writable by default

#systemd #linux #docker #devops
10
Comments
8 min read
GRO Hid My TLS Handshake's Real Packet Split, Even Over a Real Network
alexgeorgiev17 profile

GRO Hid My TLS Handshake's Real Packet Split, Even Over a Real Network

#networking #tls #linux #devops
10
Comments 2
5 min read
Kubernetes 1.37's kyaml output closes a YAML bug that still deletes data on apply
alexgeorgiev17 profile

Kubernetes 1.37's kyaml output closes a YAML bug that still deletes data on apply

#kubernetes #yaml #devops #kubectl
8
Comments
7 min read
Git 2.55's reftable backend creates 10,000 refs in 40ms instead of 650ms

High concurrency reveals unexpected lock failures
alexgeorgiev17 profile

Git 2.55's reftable backend creates 10,000 refs in 40ms instead of 650ms

#git #devops #performance #opensource
17
Comments 17
7 min read
Docker Engine 29.8's --umask flag fixes permissions docker exec used to reset
alexgeorgiev17 profile

Docker Engine 29.8's --umask flag fixes permissions docker exec used to reset

#docker #devops #security #containers
15
Comments 2
6 min read
PostgreSQL 19's data checksums can now be switched on without stopping the server

Benchmark shows minimal write throughput impact
alexgeorgiev17 profile

PostgreSQL 19's data checksums can now be switched on without stopping the server

#postgres #database #devops #performance
14
Comments 2
7 min read
Traefik 3.6's multi-layer routing held up against 500 concurrent header-spoofing attempts
alexgeorgiev17 profile

Traefik 3.6's multi-layer routing held up against 500 concurrent header-spoofing attempts

#traefik #docker #security #devops
7
Comments
7 min read
Hacktoberfest 2026 Changed the Rules. Here's How to Actually Join In This October

Hacktoberfest: Open Source Reflections
alexgeorgiev17 profile

Hacktoberfest 2026 Changed the Rules. Here's How to Actually Join In This October

#hacktoberfest #opensource #community #beginners
16
Comments 3
4 min read
Blacksmith's GitHub Actions runners finished the same job 3 to 4 times faster than GitHub hosted Actions, across 10 trials

Requires an org repo and measures via date
alexgeorgiev17 profile

Blacksmith's GitHub Actions runners finished the same job 3 to 4 times faster than GitHub hosted Actions, across 10 trials

#githubactions #devops #ci #productivity
23
Comments 15
5 min read
FastAPI's new app.frontend() fixes a route-order bug in manual SPA serving

Benchmarks show no performance drop at 440 req/s
alexgeorgiev17 profile

FastAPI's new app.frontend() fixes a route-order bug in manual SPA serving

#python #fastapi #webdev #api
9
Comments 14
7 min read
How to Send Email With SMTPfast Two Ways, and Actually Watch Where It Went

Includes real live-test API calls and webhook docs
alexgeorgiev17 profile

How to Send Email With SMTPfast Two Ways, and Actually Watch Where It Went

#email #api #tutorial #webdev
18
Comments 7
7 min read
Caddy 2.11's default post-quantum key exchange sends six times more handshake bytes

Packet size crosses a TCP boundary
alexgeorgiev17 profile

Caddy 2.11's default post-quantum key exchange sends six times more handshake bytes

#caddy #security #performance #devops
12
Comments 8
6 min read
Node.js 26.9 turns node:ffi on by default at 37 nanoseconds a call
alexgeorgiev17 profile

Node.js 26.9 turns node:ffi on by default at 37 nanoseconds a call

#node #performance #javascript #devops
19
Comments 2
7 min read
Deno 2.6's minimum dependency age flag ignores year and month durations

Real-world tests reveal a silent CLI bug
alexgeorgiev17 profile

Deno 2.6's minimum dependency age flag ignores year and month durations

#deno #javascript #security #npm
12
Comments 6
8 min read
7 SMTP APIs Worth Knowing in 2026, and Where I'd Start
alexgeorgiev17 profile

7 SMTP APIs Worth Knowing in 2026, and Where I'd Start

#email #api #webdev #programming
21
Comments 5
5 min read
MongoDB 8.2's encrypted substring search costs 20 times more per insert than equality
alexgeorgiev17 profile

MongoDB 8.2's encrypted substring search costs 20 times more per insert than equality

#mongodb #database #security #performance
11
Comments 2
6 min read
Tigris marks every read with the region and cache layer that actually served it
alexgeorgiev17 profile

Tigris marks every read with the region and cache layer that actually served it

#storage #s3 #cloud #devops
7
Comments
5 min read
Redis 8.10's compact hashes need HIMPORT or a restart to kick in
alexgeorgiev17 profile

Redis 8.10's compact hashes need HIMPORT or a restart to kick in

#redis #database #performance #devops
12
Comments 8
7 min read
Django 6.1's FETCH_PEERS collapses a 2,001-query loop into 2
alexgeorgiev17 profile

Django 6.1's FETCH_PEERS collapses a 2,001-query loop into 2

#django #python #database #performance
6
Comments 2
7 min read
Docker Engine 29's default image store lets --storage-opt size fail silently
alexgeorgiev17 profile

Docker Engine 29's default image store lets --storage-opt size fail silently

#docker #devops #performance #containers
7
Comments 1
6 min read
Nile isolates Postgres tenants with a tenant_id column and one session variable
alexgeorgiev17 profile

Nile isolates Postgres tenants with a tenant_id column and one session variable

#postgres #database #security #saas
6
Comments 3
5 min read
Bun 1.4's Rust rewrite cuts script startup time from 10.5ms to 4.2ms
alexgeorgiev17 profile

Bun 1.4's Rust rewrite cuts script startup time from 10.5ms to 4.2ms

#node #performance #devops #javascript
5
Comments 3
6 min read
Built anything cool with AI lately?

From fitness apps to custom programming languages
alexgeorgiev17 profile

Built anything cool with AI lately?

#discuss #ai #community
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Picked as gem Comments 29
1 min read
Valkey 9.1's hash field TTL triples memory use for the pattern its own docs show
alexgeorgiev17 profile

Valkey 9.1's hash field TTL triples memory use for the pattern its own docs show

#database #performance #docker #devops
10
Comments 3
8 min read
SQLite 3.53's self-healing index only repairs the rows you write to

Comments debate integrity check behaviors
alexgeorgiev17 profile

SQLite 3.53's self-healing index only repairs the rows you write to

#sqlite #database #performance #testing
13
Comments 5
9 min read
nginx silently rejects the new HTTP QUERY method

Real-world proxy tests reveal breaking edge cases
alexgeorgiev17 profile

nginx silently rejects the new HTTP QUERY method

#nginx #django #fastapi #http
13
Comments 5
7 min read
What is your daily routine?
alexgeorgiev17 profile

What is your daily routine?

#watercooler #discuss #devops
8
Comments 4
1 min read
What is your daily routine?
alexgeorgiev17 profile

What is your daily routine?

1
Comments 1
1 min read
How do you stay productive?
alexgeorgiev17 profile

How do you stay productive?

#watercooler #productivity #programming #devops
14
Comments 5
1 min read
Which Linux distro do you use?
alexgeorgiev17 profile

Which Linux distro do you use?

#discuss #linux #devops #watercooler
21
Comments 101
1 min read
What are the first things you do on a brand new laptop or PC?
alexgeorgiev17 profile

What are the first things you do on a brand new laptop or PC?

#watercooler #discuss #productivity #devops
8
Comments 32
1 min read
Monitor disk space usage with BASH
alexgeorgiev17 profile

Monitor disk space usage with BASH

#linux #bash #monitoring #devops
23
Comments
5 min read
Top 10 Git GUI clients
alexgeorgiev17 profile

Top 10 Git GUI clients

#discuss #github #webdev #productivity
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Comments 35
5 min read
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