# Arthrimus (@Arthrimus) on x

- id: koinon:creator:x_arthrimus
- url: https://koinonlink.com/kol/x/Arthrimus
- schema_version: 1.4

## Identity
- platform: x
- handle: Arthrimus
- platform_url: https://twitter.com/Arthrimus
- website: https://www.arthrimus.com
- entity_type: creator
- person_id: Cross-platform identity not resolved for this creator.

## Reach
- followers: 3520
- following: 114
- posts_total: 2091
- posts_observed: 10
- posts_per_day: 0.49
- account_age_days: 4264
- verified: false
- size_tier: nano

## Engagement
- status: peak_post_only
- peak_post_engagement_rate: 0.01989
- best_post_interactions: 70
- measurement_source: x_post_interactions
- measurement_formula: interactions on one post — likes, or likes + reposts + replies depending on the discovery path (the two are not distinguishable in the stored data)
- comparable_pool: peak_interactions
- status_note: We have only the single best observed post, so no mean exists. peak_post_engagement_rate is an UPPER BOUND, systematically higher than an average — never compare it against an average rate.
- unit_note: engagement_rate and peak_post_engagement_rate are ratios (0-1); avg_interactions_per_post and best_post_interactions are absolute counts. Read status before reading any number: a null rate has several different causes and status says which one applies here.

## Content
- category: software
- subcategory: devtools
- category_confidence: 0.93
- category_source: derived_from_recent_content
- topics: Scalable Video Switch transcoder modules, RGB to YPbPr signal conversion, Hardware purchasing tips
- bio: Soldering iron for hire, serial maker of things, chronic waster of time.

Mental Powers: Every/All

Check out my YouTube channel: https://t.co/csLE70iREW

## Audience (inferred)
- status: present
- description: Niche retro video hardware hobbyists and makers buying RGB/YPbPr transcoder modules for custom video switches
- roles: consumer
- seniority: consumer
- pain_points: Sourcing compatible transcoder modules for RGB to YPbPr conversion, Figuring out correct module placement on video switch outputs, Catching limited-time hardware releases at specific times
- posts_analysed: 3
- confidence: 0.4

## Commercial (inferred)
- audience_buyer_fit: 0.8
- promotion_intent: 0.8
- open_to_collaboration: false
- contact: Koinon does not publish creator contact details.

## Quality signals
- authenticity_score: 70
- authenticity_basis: engagement_observed
- credibility_score: 70
- flagged_for_review: false
- koinon_bd_grade: A — measures Koinon partner-outreach fit, not creator quality
- interpretation: Signals for triage, not verdicts. A flag means the profile is worth a manual check.

## Evidence
- [x_arthrimus#9d26f2d2] I'm happy to announce that @CastleManiaRyan will now be an authorized reseller of the Scalable Video Switch! Castlemania are currently running pre-orders for the August batch of modules, set to ship sometime in September. So if you don't want to wait for the restock on my website (https://twitter.com/Arthrimus/status/2062988384818123238)
- [x_arthrimus#136140c3] The RetroTink 5x A2C flex cable prototypes came in today and it looks like I nailed it first try. I'm waiting for the oscillators to come in before I actually install one, but assuming I got all the wiring correct these should be good to go very quickly. Another huge thanks to @r
- [x_arthrimus#a28be1d3] Here is a quick demo video I recorded showing how the new Scalable Video Switch YPbPr to RGB and RGB to YPbPr transcoder modules work. They will be available at 4:00PM Central Time at https://t.co/Jwtu2T0v59 https://t.co/Q7jeFMqG23
- [x_arthrimus#47cf8625] Just another reminder that the Scalable Video Switch RGB to YPbPr and YPbPr to RGB transcoder modules will be available to purchase tomorrow at 4:00 PM Central Time. Some tips before you purchase. - Regardless of how many inputs you need to transcode, only one transcoder module i
- [x_arthrimus#ca7b7931] The Scalable Video Switch transcoder modules will finally be available this Saturday at 4:00PM Central Time! There are two transcoder types RGB to YPbPr and YPbPr to RGB. Check the product pages at the link below for more details. https://t.co/qrfJtBLXp5
- [x_arthrimus#109cf853] I've designed the RetroTink 5x A2C flex for upgrading REV A RT5X boards to REV C for the new firmware updates. The paper mockup fits so I'll be ordering prototypes this week. Thanks to @retrotink2 for providing files to help with the dimensions and @Voultar for the live stream th
- [x_arthrimus#e5f9f0e8] Update, 200pf capacitors seem to introduce write issues with some SD cards. So it's probably safer at this time to use 100pf capacitors. 100pf capacitors are less effective at reducing the hot restart issues with SCPH-70001 motherboards, but if the tradeoff is being unable to wri
- [x_arthrimus#468cd0fe] Big iFlash2PS2 breakthrough! @rezenclowd3 informed me that he and pcm720 had tried following the advice of @Gusse__ to add 100pf capacitors to ground on the RESET, DIOW, DIOR and DMACK pads of the PS2 motherboard. They found that with this modification in place the iFlash was muc

## Provenance
Every inferred field below carries how it was produced. Facts stay facts; inferences stay inferences.

- audience.description: source_type=ai_inferred, confidence=0.4, freshness_days=76, method=llm_persona_from_recent_content
- audience.roles: source_type=ai_inferred, confidence=0.4, freshness_days=76, method=llm_persona_from_recent_content
- audience.seniority: source_type=ai_inferred, confidence=0.4, freshness_days=76, method=llm_persona_from_recent_content
- commercial.audience_buyer_fit: source_type=ai_inferred, confidence=0.6, freshness_days=76, method=llm_scorer — Relative signal within Koinon indexing, not a market-wide score.
- commercial.promotion_intent: source_type=ai_inferred, confidence=0.6, freshness_days=76, method=llm_scorer
- quality.anomaly_flags: source_type=heuristic, confidence=0.5, freshness_days=108, method=profile_snapshot_and_engagement_ratio_heuristic — Means "worth a manual check", NOT confirmed fraud. Flags can be wrong and are not a verdict about the person.
- quality.authenticity_score: source_type=heuristic, confidence=0.5, freshness_days=76, method=Profile-shape heuristic from a single snapshot (follower count, following ratio, account age, posting volume, verification), reduced for engagement red flags where post engagement was collected. Where only a follower count is available the score saturates at 58. — The input set differs by platform; do not compare this score across platforms.
- quality.koinon_bd_grade: source_type=ai_inferred, confidence=0.5, freshness_days=108, method=llm_partner_fit_classifier + fit_score >= 0.6 AND authenticity >= 60 => A; fit_score >= 0.4 AND authenticity >= 45 => B; else C. authenticity < 30 or a promotional-pattern flag => quarantine. — Koinon partner-outreach fit, not creator quality.
- reach.followers: source_type=observed, confidence=0.95, freshness_days=108, method=platform_profile

## Freshness
- profile_checked_days_ago: 108
- content_analysed_days_ago: 76
- audience_updated_days_ago: 76

## AI retrieval
- indexing_requests: 9
- user_triggered_requests: 0
- note: Being indexed in bulk is not the same as being retrieved to answer a question.

## This profile
- Claim or correct: https://koinonlink.com/claim?k=x_arthrimus
- Request removal: https://koinonlink.com/claim?k=x_arthrimus
- Terms: https://koinonlink.com/for-ai