Mario (@null_deref) — AI tools / agents on X (Twitter)
Mario is an AI tools / agents creator on X (Twitter) in the under 1K follower range, publishing for indie hackers and solo developers building their own apps or SaaS products, often aiming for MRR milestones. Profile last checked 2026-07-05.
| Field | Value |
| --- | --- |
| Platform | X (Twitter) |
| Handle | @null_deref |
| Followers | under 1K |
| Category | Software · AI tools / agents |
| Audience function | developers |
Profile bio
25M pushups, $100k MRR @ https://t.co/uqIIncMVpX with @skyirezumi Because learning without writing it down is like teaching a snail to breakdance: slow & frustrating 🐌
What this creator posts about, and who reads it
Recurring topics: learning from app failures, validating ideas by trying them, quitting job to build full-time, indie app development and persistence
Audience: indie hackers and solo developers building their own apps or SaaS products, often aiming for MRR milestones
Audience read from this creator’s own recent posts, not from platform-declared categories. It is our reading, and it can be wrong.
Recent content samples
what subsidized Fable usage does to a mf https://t.co/s3PDWYvVKA
It sucks to say it because it's such a cliche But you won't know if something will work until you try it And most importantly, don't move on without knowing why it failed and how your next try is better If you keep at…
It's ok if your app fails Mine did But you should always know WHY it failed Then you learn and make sure it doesn't happen again Don't just launch another app and think "this time it will work" Leave that endless loop
https://t.co/v7Z2Ksben6
See the original post on X (Twitter)
Where this creator sits in the wider pool
Koinon Link indexes X (Twitter) creators in Software with grade, authenticity and contactability broken down — see the X (Twitter) × Software breakdown, or the Creator Index Report for the whole index.
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