lefred✓

Mastodon @lefred@fosstodon.org

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🔒 Paid proposals held safely in escrow — released only when the work's approved.

Followers

108

Account age

3 yrs

🧰 Free analysis for lefred

🕵️ Fake follower check 📊 Engagement rate 💰 What they charge

Known for

A Native ADBC Driver for MariaDB
Apache Arrow Database Connectivity (ADBC) provides a standard interface for exchanging data between applications and databases using Apache Arrow.
You can think of it as an Arrow-oriented alternative to traditional database APIs such as ODBC and JDBC. The important d

2 views A Native ADBC Driver for MariaDB Apache Arrow Database Connectivity (ADBC) provides a standard interface for exchanging data between applications and databases using Apache Arrow. You can think of it as an Arrow-oriented alternative to traditional database APIs such as ODBC and JDBC. The important d

Firefox add-on: lefred’s GroupKeep
Firefox has had native Tab Groups (since version 141) to help organize your browsing... and I love this feature!
However, what a disappointment when I realized that once Firefox closed, the groups were lost!
But hey, this is open source, isn't it? And Firefox easil

2 views Firefox add-on: lefred’s GroupKeep Firefox has had native Tab Groups (since version 141) to help organize your browsing... and I love this feature! However, what a disappointment when I realized that once Firefox closed, the groups were lost! But hey, this is open source, isn't it? And Firefox easil

When the Sea Lion teaches the Duck how to bark!
You may have recently seen that MariaDB Server supports the DuckDB Storage Engine [1][2]. And that's great.
After my first look at it, Roman created those 3 MDEVs with my suggestions:
MDEV-40265 - UUID columns contain all zeros in DuckDB table.
MDEV-4

2 views When the Sea Lion teaches the Duck how to bark! You may have recently seen that MariaDB Server supports the DuckDB Storage Engine [1][2]. And that's great. After my first look at it, Roman created those 3 MDEVs with my suggestions: MDEV-40265 - UUID columns contain all zeros in DuckDB table. MDEV-4

From SQLite to MariaDB: When Your Application Needs to Grow
SQLite is fantastic.
Really.
For a developer starting a new project, it is difficult to find something easier: no server to install, no network configuration, no user management, no backup strategy to define on day one.
You create a file, y

2 views From SQLite to MariaDB: When Your Application Needs to Grow SQLite is fantastic. Really. For a developer starting a new project, it is difficult to find something easier: no server to install, no network configuration, no user management, no backup strategy to define on day one. You create a file, y

📊 Post engagement

Avg engagement / post

1.9%

Engagement vs followers

Nov 2022

On Mastodon since

🔥 Top post: A Native ADBC Driver for MariaDB Apache Arrow Database Connectiv · 2 likes + reposts

📊 Activity & format

Posting cadence

13.5 / week

Toots daily — consistently active for a campaign window.

Content mix

Mostly images

Recent: 0 text · 12 image · 0 video.

Follower / following

4.2×

Follows 26 back. A more reciprocal / networked account.

Recent posts

View on Mastodon ↗

🔥 Top post A Native ADBC Driver for MariaDB Apache Arrow Database Connectivity (ADBC) provides a standard interface for exchanging data between applications and databases using Apache Arrow. You can think of it as an Arrow-oriented alternative to traditional database APIs such as ODBC and … ★ 2

MariaDB 13.1 Preview: Avoid MariaDB Restart Failures with --validate-config https://mariadb.org/mariadb-13-1-feature-in-focus-validate-your-configuration-before-starting-the-server/ 🦭 ✅️

MariaDB 13.1 Feature in Focus: Validate Your Configuration Before Starting the Server Have you ever modified a MariaDB configuration file, restarted the service, and immediately regretted it? You wanted to change: innodb_buffer_pool_size=1…

MariaDB Tips & Tricks: Where does my configuration variable value come from? As you may already know, there are many places where a MariaDB system variable can get its value. It can come from: the compile-time default; an option file; the …

Discover how the native MariaDB ADBC driver connects MariaDB Server with Apache Arrow, supporting queries, prepared statements, bulk ingestion, transactions, metadata, statistics, and more. ⏩️ 🦭 https://lefred.be/content/a-native-adbc-dri… ★ 1

Install the MariaDB ADBC driver, configure a DuckDB profile 🦆, and query MariaDB 🦭 data directly from DuckDB. #mariadb #duckdb #adbc https://lefred.be/content/when-the-sea-lion-teaches-the-duck-how-to-bark/

So happy that my #Firefox add-on is now available. If you were looking for Group Tab management, take a look at it! 🦊🧩 https://lefred.be/content/firefox-add-on-lefreds-groupkeep/

Firefox add-on: lefred’s GroupKeep Firefox has had native Tab Groups (since version 141) to help organize your browsing... and I love this feature! However, what a disappointment when I realized that once Firefox closed, the groups were lo… ★ 2

When the Sea Lion teaches the Duck how to bark! You may have recently seen that MariaDB Server supports the DuckDB Storage Engine [1][2]. And that's great. After my first look at it, Roman created those 3 MDEVs with my suggestions: MDEV-4… ★ 2

From SQLite to MariaDB: When Your Application Needs to Grow SQLite is fantastic. Really. For a developer starting a new project, it is difficult to find something easier: no server to install, no network configuration, no user management, … ★ 2

Did you know that #MariaDB Server 🦭 supports online schema changes? Take a look 👀 at this other hidden gem! 💎 https://mariadb.org/mariadb-hidden-gem-online-schema-change-without-pt-osc/

MariaDB Hidden Gem: Online Schema Change without pt-osc When people hear “online schema change” in the MySQL and MariaDB world, many immediately think about pt-online-schema-change. And for good reasons: for years, changing a large table i… ★ 1

🐘 Community & instance

Home server

fosstodon.org

A open-source software server — its members and audience skew toward that niche, so expect a community-aligned, engaged following.

✅ Link-verified

Verified link

Proved ownership of a website linked on their profile — Mastodon's green-check verification, a real identity signal rather than a paid badge.

On Mastodon since

Nov 2022

Joined in the Twitter-exodus wave of late 2022 — part of the migration that made Mastodon a real destination.

💡 Facts

🗓️Joined Mastodon in 2022 — 3 years ago.

👁️Averages 2 views per post.

📤Posts about 13.5× per week.

🕵️ Fake follower check

Estimated

89/100

Excellent Credibility score

99%

Real Real audience

Low Fake-follower risk

High Data confidence

Est. 99% real, active audience · Low fake-follower risk.
Strong engagement (~1.9% of followers engage each post) — an active, real audience.
Verified account.
Established account (3+ years old).

Heuristic estimate from engagement, follower ratios, account age & growth — a screening signal, not a guarantee.

About

Community Advocate at MariaDB Foundation. All you need to know is on http://about.me/lefred ;-)

📸 Gallery

🔀 Audience overlap

Estimated

Estimated shared audience with similar creators — useful for avoiding overlap (or doubling down) when planning a campaign.

ananas 18%

David Högberg 18%

hyper.rs :rust: 18%

mithos 17%

alsvha 15%

Samantha 11%

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Samantha

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108 Followers

lefred✓

Make a deal with lefred

Known for

📊 Post engagement

📊 Activity & format

Recent posts

🐘 Community & instance

💡 Facts

🕵️ Fake follower check

About

📸 Gallery

🔀 Audience overlap

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