The Compagnons du Devoir is an organisation founded in the Middle Ages whose sole purpose is the transmission of tacit knowledge in manual trades. Carpenters, stonemasons, roofers, joiners. This knowledge is not in books — it is in hands, in gestures, in the daily decisions that only an experienced practitioner makes without realising it.

Without the Compagnons, Notre-Dame's reconstruction would have produced a technically correct and aesthetically approximate building. With them, the nave's timber frame was reconstructed in oak, using medieval techniques, with original assemblies — wooden pegs, no nails. This is not nostalgia: it is heritage sovereignty. France was able to rebuild Notre-Dame identically because an organisation had refused to let a knowledge die that nobody thought urgent to preserve.

When the last bare-metal SRE leaves — the one who can hear an anomaly in fan noise, read a network incident from raw metrics, who installed their first servers by hand before cloud existed — the runbooks will be there. The procedures will be documented. The AWS console will be available. But the tacit knowledge will have left with them. And the next major infrastructure crisis will produce an organisation that fumbles, calls consultants, starts from zero. Exactly like Notre-Dame without the Compagnons.

The Tour de France: the young craftsman travels France — working successively with different masters, in different regions, exposing their knowledge to varied contexts. Not nomadism — structured training through contextual diversity. The Digital Craftsmen are open to all — equal access to grades regardless of gender is a founding condition of the association. The digital equivalent: structured rotation between different organisations (consulting firm, large corporation, public administration, startup, software publisher) for 12 to 24 months.

Compagnonnage: transmission does not happen in classrooms — it happens side by side, on the worksite, in real conditions. The master works, the apprentice observes, then does, then is evaluated. This is exactly the Observation Day documented in the corpus — extended to a structured relationship over months.

Grades: aspirant (in training) → compagnon (received) → master craftsman (transmitter). Each grade is open to all, equally. Each grade is earned through evaluation of the masterpiece — a concrete achievement judged by peers. The equivalent: aspirant SRE / compagnon SRE / master SRE, with a real technical project as reception masterpiece.

The Charter: the craftsman signs a body membership charter — commitment to transmission, quality, professional conduct. Not an employment contract — a commitment to the body.

The compagnon secret, initiation rites, esoteric symbols — these elements have their logic in the Compagnons' history but are not transposable to digital infrastructure. What we extract: the transmission structure, the grades, the formative itineracy, the membership charter. The form without the esoteric content.

— Minimum salaries by coefficient (200 to 900+) with a three-category classification grid (ETAM, Engineers and Executives, Assimilated Executives).
— Regulation of day-rate arrangements (RTT, compensatory rest).
— Right to professional training with a specific budget.
— Enhanced healthcare and life insurance.
— Regulated mobility and relocation clauses.
— Redundancy payments above the legal minimum.

The SRE engineer in a bank is covered by the banking collective agreement (IDCC 2120) — a convention designed for banking roles, not technical ones. The SRE engineer in a hospital is covered by the hospital convention — designed for healthcare workers and administrators. The SRE engineer in the oil industry is covered by the petroleum convention. In all these cases, the applicable convention ignores the specificities of the infrastructure role: technical night on-calls, unmeasurable tacit knowledge, progression by competence rather than seniority, profile scarcity and the market salaries reflecting it.

Journalists benefit from the national journalists' collective agreement regardless of the sector of the company employing them — press, television, web, communications agency. A journalist in an advertising agency remains covered by the journalists' convention, not the advertising convention. This mechanism exists. It is legally established. It protects the profession wherever it is found, not wherever its employer is found. Infrastructure can and must work the same way.

Principle: when the employer's collective agreement is less protective than Syntec for the infrastructure roles listed in the nomenclature (SysOps/NetOps/OpInfra, six levels), Syntec applies by primacy. This mechanism already exists in French labour law — the favourability principle (Article L2254-1 of the Labour Code) allows a branch agreement to take precedence over a less favourable company agreement. Extension to inter-branch primacy requires a branch agreement or extension decree.

— Application of Syntec minimum salaries by coefficient, above the employer convention's minimums in under-paying sectors.
— Regulation of technical night on-calls (The Pager and the Body) with mandatory premiums.
— Right to infrastructure training (Foundation of Iron) on employer budget.
— Mobility clause protection — the infrastructure engineer cannot be relocated without respecting Syntec notice periods.
— Recognition of tacit knowledge in the classification grid — progression is not solely linked to seniority.

Aligned with the SysOps/NetOps/OpInfra nomenclature and existing Syntec coefficients:
Support / proximity technician (L1): coeff. 200-250 → €24,000-27,000 gross annual minimum.
Field technician (L2): coeff. 250-300 → €27,000-32,000 gross annual minimum.
Junior administrator (L3): coeff. 300-395 → €32,000-38,000 gross annual minimum.
SRE engineer (L4): coeff. 395-500 → €38,000-50,000 gross annual minimum.
Lead SysOps / Lead NetOps (L5): coeff. 500-660 → €50,000-65,000 gross annual minimum.
Principal SRE / Architect (L6): coeff. 660-900 → €65,000-90,000 gross annual minimum.

"The Pager and the Body" documented the cortisol debt of night on-calls. Elastic Syntec must specifically regulate infrastructure on-calls:
— Maximum 8 on-call weeks per quarter per engineer, mandatory documented rotation.
— 25% salary premium for any effective intervention between 10pm and 7am.
— Mandatory compensatory rest after any night intervention exceeding 2 hours.
— Prohibition of consecutive on-call exceeding 7 days without written employee agreement.

Syntec already requires a percentage of payroll dedicated to training. Elastic infrastructure Syntec mandatorily directs part of this budget toward recognised infrastructure training — Foundation of Iron, neutral certifications (Linux Foundation, HashiCorp, CNCF) — not exclusively hyperscaler cloud certifications that reinforce lock-in. This is the correction mechanism for the CPF Misused documented in the corpus.

Legal form: non-profit association, funded by member contributions and conventions with partner companies (which host craftsmen on rotation).

Grades: Aspirant SRE — any gender (on digital tour, < 3 years experience) / Compagnon SRE (received after masterpiece, 3-8 years) / Master Compagnon SRE (recognised transmitter, > 8 years, minimum mentoring commitment of 1 aspirant/year).

The Digital Tour of France: structured rotation of 12 to 24 months across 3 to 5 partner organisations from different sectors — a consulting firm, a major corporation, a public administration, a startup, a software publisher. Each rotation: 3 to 6 months minimum, with a Master Compagnon referent in place.

The Reception Masterpiece: real technical project carried out in operational conditions — infrastructure migration, deployment of a bare-metal monitoring system, construction of a CI/CD pipeline. Evaluated by a peer jury (Master Compagnons — all genders).

The Charter: commitment to transmission (minimum 1 mentored aspirant per Compagnon, any gender), technical quality, technological neutrality (no hyperscaler evangelism).

The Master Compagnon SRE — woman or man — is the corpus's M3allem — the transmitter whose mechanism "The Mentor and the Metal" documented and "The Teacher's Manifesto" positioned. The Digital Craftsmen are fully open to women: equal access to all grades is a founding condition, not an aspiration. No longer an isolated individual transmitting in the shadows — a body that perpetuates itself, in all its diversity.